Home / 231,663.20-347,545.76-131,870.40

Finding the Fourth Proportional to 231,663.20, 347,545.76 and 131,870.40

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Solution

The fourth proportional to 231,663.20, 347,545.76 and 131,870.40 is: 197,834.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,663.20 : 347,545.76 = 131,870.40 : x
  2. Step 2: Convert to fraction form
    231,663.20/347,545.76 = 131,870.40/x
  3. Step 3: Cross multiply
    231,663.20x = 347,545.76 × 131,870.40
  4. Step 4: Simplify right side
    231,663.20x = 45,830,998,389.50
  5. Step 5: Solve for x
    x = 45,830,998,389.50/231,663.20
  6. Step 6: Final answer
    x = 197,834.61

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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.