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Finding the Fourth Proportional to 150,414.70, 225,572.84 and 70,427.91

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Solution

The fourth proportional to 150,414.70, 225,572.84 and 70,427.91 is: 105,618.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,414.70 : 225,572.84 = 70,427.91 : x
  2. Step 2: Convert to fraction form
    150,414.70/225,572.84 = 70,427.91/x
  3. Step 3: Cross multiply
    150,414.70x = 225,572.84 × 70,427.91
  4. Step 4: Simplify right side
    150,414.70x = 15,886,623,673.96
  5. Step 5: Solve for x
    x = 15,886,623,673.96/150,414.70
  6. Step 6: Final answer
    x = 105,618.82

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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.