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Finding the Fourth Proportional to 506,209.88, 759,055.98 and 169,128.92

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Solution

The fourth proportional to 506,209.88, 759,055.98 and 169,128.92 is: 253,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,209.88 : 759,055.98 = 169,128.92 : x
  2. Step 2: Convert to fraction form
    506,209.88/759,055.98 = 169,128.92/x
  3. Step 3: Cross multiply
    506,209.88x = 759,055.98 × 169,128.92
  4. Step 4: Simplify right side
    506,209.88x = 128,378,318,116.94
  5. Step 5: Solve for x
    x = 128,378,318,116.94/506,209.88
  6. Step 6: Final answer
    x = 253,606.90

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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.