Home / 278,440.13-417,566.59-100,909.97

Finding the Fourth Proportional to 278,440.13, 417,566.59 and 100,909.97

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Solution

The fourth proportional to 278,440.13, 417,566.59 and 100,909.97 is: 151,331.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,440.13 : 417,566.59 = 100,909.97 : x
  2. Step 2: Convert to fraction form
    278,440.13/417,566.59 = 100,909.97/x
  3. Step 3: Cross multiply
    278,440.13x = 417,566.59 × 100,909.97
  4. Step 4: Simplify right side
    278,440.13x = 42,136,632,069.90
  5. Step 5: Solve for x
    x = 42,136,632,069.90/278,440.13
  6. Step 6: Final answer
    x = 151,331.03

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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.