Home / 231,605.20-347,148.60-131,813.20

Finding the Fourth Proportional to 231,605.20, 347,148.60 and 131,813.20

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Solution

The fourth proportional to 231,605.20, 347,148.60 and 131,813.20 is: 197,572.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,605.20 : 347,148.60 = 131,813.20 : x
  2. Step 2: Convert to fraction form
    231,605.20/347,148.60 = 131,813.20/x
  3. Step 3: Cross multiply
    231,605.20x = 347,148.60 × 131,813.20
  4. Step 4: Simplify right side
    231,605.20x = 45,758,767,841.52
  5. Step 5: Solve for x
    x = 45,758,767,841.52/231,605.20
  6. Step 6: Final answer
    x = 197,572.28

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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.