Home / 231,867.60-347,801.40-220,981.20

Finding the Fourth Proportional to 231,867.60, 347,801.40 and 220,981.20

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Solution

The fourth proportional to 231,867.60, 347,801.40 and 220,981.20 is: 331,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,867.60 : 347,801.40 = 220,981.20 : x
  2. Step 2: Convert to fraction form
    231,867.60/347,801.40 = 220,981.20/x
  3. Step 3: Cross multiply
    231,867.60x = 347,801.40 × 220,981.20
  4. Step 4: Simplify right side
    231,867.60x = 76,857,570,733.68
  5. Step 5: Solve for x
    x = 76,857,570,733.68/231,867.60
  6. Step 6: Final answer
    x = 331,471.80

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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.