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Finding the Fourth Proportional to 235,152.70, 352,626.99 and 85,343.20

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Solution

The fourth proportional to 235,152.70, 352,626.99 and 85,343.20 is: 127,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,152.70 : 352,626.99 = 85,343.20 : x
  2. Step 2: Convert to fraction form
    235,152.70/352,626.99 = 85,343.20/x
  3. Step 3: Cross multiply
    235,152.70x = 352,626.99 × 85,343.20
  4. Step 4: Simplify right side
    235,152.70x = 30,094,315,732.97
  5. Step 5: Solve for x
    x = 30,094,315,732.97/235,152.70
  6. Step 6: Final answer
    x = 127,977.76

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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.