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Finding the Fourth Proportional to 507,705.88, 761,310.01 and 208,104.97

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Solution

The fourth proportional to 507,705.88, 761,310.01 and 208,104.97 is: 312,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,705.88 : 761,310.01 = 208,104.97 : x
  2. Step 2: Convert to fraction form
    507,705.88/761,310.01 = 208,104.97/x
  3. Step 3: Cross multiply
    507,705.88x = 761,310.01 × 208,104.97
  4. Step 4: Simplify right side
    507,705.88x = 158,432,396,791.75
  5. Step 5: Solve for x
    x = 158,432,396,791.75/507,705.88
  6. Step 6: Final answer
    x = 312,055.47

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.