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Finding the Fourth Proportional to 453,883.65, 680,862.74 and 138,343.29

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Solution

The fourth proportional to 453,883.65, 680,862.74 and 138,343.29 is: 207,526.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,883.65 : 680,862.74 = 138,343.29 : x
  2. Step 2: Convert to fraction form
    453,883.65/680,862.74 = 138,343.29/x
  3. Step 3: Cross multiply
    453,883.65x = 680,862.74 × 138,343.29
  4. Step 4: Simplify right side
    453,883.65x = 94,192,790,798.30
  5. Step 5: Solve for x
    x = 94,192,790,798.30/453,883.65
  6. Step 6: Final answer
    x = 207,526.29

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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.