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Finding the Fourth Proportional to 469,861.17, 648,403.02 and 255,001.38

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Solution

The fourth proportional to 469,861.17, 648,403.02 and 255,001.38 is: 351,898.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,861.17 : 648,403.02 = 255,001.38 : x
  2. Step 2: Convert to fraction form
    469,861.17/648,403.02 = 255,001.38/x
  3. Step 3: Cross multiply
    469,861.17x = 648,403.02 × 255,001.38
  4. Step 4: Simplify right side
    469,861.17x = 165,343,664,896.17
  5. Step 5: Solve for x
    x = 165,343,664,896.17/469,861.17
  6. Step 6: Final answer
    x = 351,898.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.