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Finding the Fourth Proportional to 506,066.72, 759,139.20 and 169,108.56

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Solution

The fourth proportional to 506,066.72, 759,139.20 and 169,108.56 is: 253,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,066.72 : 759,139.20 = 169,108.56 : x
  2. Step 2: Convert to fraction form
    506,066.72/759,139.20 = 169,108.56/x
  3. Step 3: Cross multiply
    506,066.72x = 759,139.20 × 169,108.56
  4. Step 4: Simplify right side
    506,066.72x = 128,376,936,951.55
  5. Step 5: Solve for x
    x = 128,376,936,951.55/506,066.72
  6. Step 6: Final answer
    x = 253,675.91

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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.