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Finding the Fourth Proportional to 442,501.71, 610,651.02 and 251,551.89

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Solution

The fourth proportional to 442,501.71, 610,651.02 and 251,551.89 is: 347,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,501.71 : 610,651.02 = 251,551.89 : x
  2. Step 2: Convert to fraction form
    442,501.71/610,651.02 = 251,551.89/x
  3. Step 3: Cross multiply
    442,501.71x = 610,651.02 × 251,551.89
  4. Step 4: Simplify right side
    442,501.71x = 153,610,418,211.43
  5. Step 5: Solve for x
    x = 153,610,418,211.43/442,501.71
  6. Step 6: Final answer
    x = 347,140.85

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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.