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Finding the Fourth Proportional to 231,038.70, 346,608.45 and 131,246.70

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Solution

The fourth proportional to 231,038.70, 346,608.45 and 131,246.70 is: 196,898.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,038.70 : 346,608.45 = 131,246.70 : x
  2. Step 2: Convert to fraction form
    231,038.70/346,608.45 = 131,246.70/x
  3. Step 3: Cross multiply
    231,038.70x = 346,608.45 × 131,246.70
  4. Step 4: Simplify right side
    231,038.70x = 45,491,215,254.62
  5. Step 5: Solve for x
    x = 45,491,215,254.62/231,038.70
  6. Step 6: Final answer
    x = 196,898.68

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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.