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Finding the Fourth Proportional to 608,071.80, 912,107.70 and 187,476.60

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Solution

The fourth proportional to 608,071.80, 912,107.70 and 187,476.60 is: 281,214.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,071.80 : 912,107.70 = 187,476.60 : x
  2. Step 2: Convert to fraction form
    608,071.80/912,107.70 = 187,476.60/x
  3. Step 3: Cross multiply
    608,071.80x = 912,107.70 × 187,476.60
  4. Step 4: Simplify right side
    608,071.80x = 170,998,850,429.82
  5. Step 5: Solve for x
    x = 170,998,850,429.82/608,071.80
  6. Step 6: Final answer
    x = 281,214.90

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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.