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Finding the Fourth Proportional to 508,100.02, 761,485.62 and 208,229.51

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Solution

The fourth proportional to 508,100.02, 761,485.62 and 208,229.51 is: 312,071.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,100.02 : 761,485.62 = 208,229.51 : x
  2. Step 2: Convert to fraction form
    508,100.02/761,485.62 = 208,229.51/x
  3. Step 3: Cross multiply
    508,100.02x = 761,485.62 × 208,229.51
  4. Step 4: Simplify right side
    508,100.02x = 158,563,777,524.65
  5. Step 5: Solve for x
    x = 158,563,777,524.65/508,100.02
  6. Step 6: Final answer
    x = 312,071.98

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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.