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Finding the Fourth Proportional to 348,040.20, 522,117.90 and 148,456.20

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Solution

The fourth proportional to 348,040.20, 522,117.90 and 148,456.20 is: 222,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,040.20 : 522,117.90 = 148,456.20 : x
  2. Step 2: Convert to fraction form
    348,040.20/522,117.90 = 148,456.20/x
  3. Step 3: Cross multiply
    348,040.20x = 522,117.90 × 148,456.20
  4. Step 4: Simplify right side
    348,040.20x = 77,511,639,385.98
  5. Step 5: Solve for x
    x = 77,511,639,385.98/348,040.20
  6. Step 6: Final answer
    x = 222,708.87

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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.