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Finding the Fourth Proportional to 268,901.62, 371,070.15 and 148,019.30

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Solution

The fourth proportional to 268,901.62, 371,070.15 and 148,019.30 is: 204,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,901.62 : 371,070.15 = 148,019.30 : x
  2. Step 2: Convert to fraction form
    268,901.62/371,070.15 = 148,019.30/x
  3. Step 3: Cross multiply
    268,901.62x = 371,070.15 × 148,019.30
  4. Step 4: Simplify right side
    268,901.62x = 54,925,542,834.98
  5. Step 5: Solve for x
    x = 54,925,542,834.98/268,901.62
  6. Step 6: Final answer
    x = 204,258.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.