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Finding the Fourth Proportional to 349,063.25, 523,565.62 and 138,644.69

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Solution

The fourth proportional to 349,063.25, 523,565.62 and 138,644.69 is: 207,955.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,063.25 : 523,565.62 = 138,644.69 : x
  2. Step 2: Convert to fraction form
    349,063.25/523,565.62 = 138,644.69/x
  3. Step 3: Cross multiply
    349,063.25x = 523,565.62 × 138,644.69
  4. Step 4: Simplify right side
    349,063.25x = 72,589,590,115.12
  5. Step 5: Solve for x
    x = 72,589,590,115.12/349,063.25
  6. Step 6: Final answer
    x = 207,955.41

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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.