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Finding the Fourth Proportional to 279,062.60, 418,340.72 and 101,444.16

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Solution

The fourth proportional to 279,062.60, 418,340.72 and 101,444.16 is: 152,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,062.60 : 418,340.72 = 101,444.16 : x
  2. Step 2: Convert to fraction form
    279,062.60/418,340.72 = 101,444.16/x
  3. Step 3: Cross multiply
    279,062.60x = 418,340.72 × 101,444.16
  4. Step 4: Simplify right side
    279,062.60x = 42,438,222,934.20
  5. Step 5: Solve for x
    x = 42,438,222,934.20/279,062.60
  6. Step 6: Final answer
    x = 152,074.20

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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.