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Finding the Fourth Proportional to 279,335.39, 419,042.46 and 89,732.17

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Solution

The fourth proportional to 279,335.39, 419,042.46 and 89,732.17 is: 134,610.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,335.39 : 419,042.46 = 89,732.17 : x
  2. Step 2: Convert to fraction form
    279,335.39/419,042.46 = 89,732.17/x
  3. Step 3: Cross multiply
    279,335.39x = 419,042.46 × 89,732.17
  4. Step 4: Simplify right side
    279,335.39x = 37,601,590,118.24
  5. Step 5: Solve for x
    x = 37,601,590,118.24/279,335.39
  6. Step 6: Final answer
    x = 134,610.91

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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.