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Finding the Fourth Proportional to 279,041.59, 418,309.26 and 101,423.17

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Solution

The fourth proportional to 279,041.59, 418,309.26 and 101,423.17 is: 152,042.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,041.59 : 418,309.26 = 101,423.17 : x
  2. Step 2: Convert to fraction form
    279,041.59/418,309.26 = 101,423.17/x
  3. Step 3: Cross multiply
    279,041.59x = 418,309.26 × 101,423.17
  4. Step 4: Simplify right side
    279,041.59x = 42,426,251,189.55
  5. Step 5: Solve for x
    x = 42,426,251,189.55/279,041.59
  6. Step 6: Final answer
    x = 152,042.75

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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.