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Finding the Fourth Proportional to 279,055.60, 418,330.24 and 101,437.16

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Solution

The fourth proportional to 279,055.60, 418,330.24 and 101,437.16 is: 152,063.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,055.60 : 418,330.24 = 101,437.16 : x
  2. Step 2: Convert to fraction form
    279,055.60/418,330.24 = 101,437.16/x
  3. Step 3: Cross multiply
    279,055.60x = 418,330.24 × 101,437.16
  4. Step 4: Simplify right side
    279,055.60x = 42,434,231,487.72
  5. Step 5: Solve for x
    x = 42,434,231,487.72/279,055.60
  6. Step 6: Final answer
    x = 152,063.72

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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.