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Finding the Fourth Proportional to 231,498.70, 346,988.85 and 131,706.70

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Solution

The fourth proportional to 231,498.70, 346,988.85 and 131,706.70 is: 197,412.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,498.70 : 346,988.85 = 131,706.70 : x
  2. Step 2: Convert to fraction form
    231,498.70/346,988.85 = 131,706.70/x
  3. Step 3: Cross multiply
    231,498.70x = 346,988.85 × 131,706.70
  4. Step 4: Simplify right side
    231,498.70x = 45,700,756,370.30
  5. Step 5: Solve for x
    x = 45,700,756,370.30/231,498.70
  6. Step 6: Final answer
    x = 197,412.58

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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.