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Finding the Fourth Proportional to 431,311.80, 595,205.10 and 240,324.60

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Solution

The fourth proportional to 431,311.80, 595,205.10 and 240,324.60 is: 331,645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,311.80 : 595,205.10 = 240,324.60 : x
  2. Step 2: Convert to fraction form
    431,311.80/595,205.10 = 240,324.60/x
  3. Step 3: Cross multiply
    431,311.80x = 595,205.10 × 240,324.60
  4. Step 4: Simplify right side
    431,311.80x = 143,042,427,575.46
  5. Step 5: Solve for x
    x = 143,042,427,575.46/431,311.80
  6. Step 6: Final answer
    x = 331,645.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.