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Finding the Fourth Proportional to 281,626.70, 422,440.92 and 71,264.57

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Solution

The fourth proportional to 281,626.70, 422,440.92 and 71,264.57 is: 106,897.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,626.70 : 422,440.92 = 71,264.57 : x
  2. Step 2: Convert to fraction form
    281,626.70/422,440.92 = 71,264.57/x
  3. Step 3: Cross multiply
    281,626.70x = 422,440.92 × 71,264.57
  4. Step 4: Simplify right side
    281,626.70x = 30,105,068,402.00
  5. Step 5: Solve for x
    x = 30,105,068,402.00/281,626.70
  6. Step 6: Final answer
    x = 106,897.07

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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.