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Finding the Fourth Proportional to 247,943.70, 371,915.55 and 148,410.90

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Solution

The fourth proportional to 247,943.70, 371,915.55 and 148,410.90 is: 222,616.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,943.70 : 371,915.55 = 148,410.90 : x
  2. Step 2: Convert to fraction form
    247,943.70/371,915.55 = 148,410.90/x
  3. Step 3: Cross multiply
    247,943.70x = 371,915.55 × 148,410.90
  4. Step 4: Simplify right side
    247,943.70x = 55,196,321,499.50
  5. Step 5: Solve for x
    x = 55,196,321,499.50/247,943.70
  6. Step 6: Final answer
    x = 222,616.35

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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.