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Finding the Fourth Proportional to 240,267.78, 360,397.08 and 71,788.59

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Solution

The fourth proportional to 240,267.78, 360,397.08 and 71,788.59 is: 107,681.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,267.78 : 360,397.08 = 71,788.59 : x
  2. Step 2: Convert to fraction form
    240,267.78/360,397.08 = 71,788.59/x
  3. Step 3: Cross multiply
    240,267.78x = 360,397.08 × 71,788.59
  4. Step 4: Simplify right side
    240,267.78x = 25,872,398,213.32
  5. Step 5: Solve for x
    x = 25,872,398,213.32/240,267.78
  6. Step 6: Final answer
    x = 107,681.51

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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.