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Finding the Fourth Proportional to 349,525.80, 523,251.90 and 231,330.60

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Solution

The fourth proportional to 349,525.80, 523,251.90 and 231,330.60 is: 346,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,525.80 : 523,251.90 = 231,330.60 : x
  2. Step 2: Convert to fraction form
    349,525.80/523,251.90 = 231,330.60/x
  3. Step 3: Cross multiply
    349,525.80x = 523,251.90 × 231,330.60
  4. Step 4: Simplify right side
    349,525.80x = 121,044,175,978.14
  5. Step 5: Solve for x
    x = 121,044,175,978.14/349,525.80
  6. Step 6: Final answer
    x = 346,309.70

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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.