Home / 231,277.20-346,543.20-131,139.60

Finding the Fourth Proportional to 231,277.20, 346,543.20 and 131,139.60

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Solution

The fourth proportional to 231,277.20, 346,543.20 and 131,139.60 is: 196,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,277.20 : 346,543.20 = 131,139.60 : x
  2. Step 2: Convert to fraction form
    231,277.20/346,543.20 = 131,139.60/x
  3. Step 3: Cross multiply
    231,277.20x = 346,543.20 × 131,139.60
  4. Step 4: Simplify right side
    231,277.20x = 45,445,536,630.72
  5. Step 5: Solve for x
    x = 45,445,536,630.72/231,277.20
  6. Step 6: Final answer
    x = 196,498.13

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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.