Home / 278,565.50-418,014.29-101,086.36

Finding the Fourth Proportional to 278,565.50, 418,014.29 and 101,086.36

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Solution

The fourth proportional to 278,565.50, 418,014.29 and 101,086.36 is: 151,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,565.50 : 418,014.29 = 101,086.36 : x
  2. Step 2: Convert to fraction form
    278,565.50/418,014.29 = 101,086.36/x
  3. Step 3: Cross multiply
    278,565.50x = 418,014.29 × 101,086.36
  4. Step 4: Simplify right side
    278,565.50x = 42,255,543,004.08
  5. Step 5: Solve for x
    x = 42,255,543,004.08/278,565.50
  6. Step 6: Final answer
    x = 151,689.79

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1.5x scale

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.