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Finding the Fourth Proportional to 279,062.45, 418,592.11 and 101,569.45

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Solution

The fourth proportional to 279,062.45, 418,592.11 and 101,569.45 is: 152,353.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,062.45 : 418,592.11 = 101,569.45 : x
  2. Step 2: Convert to fraction form
    279,062.45/418,592.11 = 101,569.45/x
  3. Step 3: Cross multiply
    279,062.45x = 418,592.11 × 101,569.45
  4. Step 4: Simplify right side
    279,062.45x = 42,516,171,524.89
  5. Step 5: Solve for x
    x = 42,516,171,524.89/279,062.45
  6. Step 6: Final answer
    x = 152,353.61

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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.