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Finding the Fourth Proportional to 141,049.70, 211,439.70 and 52,279.40

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Solution

The fourth proportional to 141,049.70, 211,439.70 and 52,279.40 is: 78,369.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,049.70 : 211,439.70 = 52,279.40 : x
  2. Step 2: Convert to fraction form
    141,049.70/211,439.70 = 52,279.40/x
  3. Step 3: Cross multiply
    141,049.70x = 211,439.70 × 52,279.40
  4. Step 4: Simplify right side
    141,049.70x = 11,053,940,652.18
  5. Step 5: Solve for x
    x = 11,053,940,652.18/141,049.70
  6. Step 6: Final answer
    x = 78,369.12

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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.