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Finding the Fourth Proportional to 231,340.80, 347,788.80 and 197,126.40

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Solution

The fourth proportional to 231,340.80, 347,788.80 and 197,126.40 is: 296,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,340.80 : 347,788.80 = 197,126.40 : x
  2. Step 2: Convert to fraction form
    231,340.80/347,788.80 = 197,126.40/x
  3. Step 3: Cross multiply
    231,340.80x = 347,788.80 × 197,126.40
  4. Step 4: Simplify right side
    231,340.80x = 68,558,354,104.32
  5. Step 5: Solve for x
    x = 68,558,354,104.32/231,340.80
  6. Step 6: Final answer
    x = 296,352.20

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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.