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Finding the Fourth Proportional to 442,354.40, 610,387.60 and 261,073.92

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Solution

The fourth proportional to 442,354.40, 610,387.60 and 261,073.92 is: 360,245.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,354.40 : 610,387.60 = 261,073.92 : x
  2. Step 2: Convert to fraction form
    442,354.40/610,387.60 = 261,073.92/x
  3. Step 3: Cross multiply
    442,354.40x = 610,387.60 × 261,073.92
  4. Step 4: Simplify right side
    442,354.40x = 159,356,283,451.39
  5. Step 5: Solve for x
    x = 159,356,283,451.39/442,354.40
  6. Step 6: Final answer
    x = 360,245.73

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1.5x scale

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.