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Finding the Fourth Proportional to 268,856.40, 371,032.40 and 148,008.92

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Solution

The fourth proportional to 268,856.40, 371,032.40 and 148,008.92 is: 204,258.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,856.40 : 371,032.40 = 148,008.92 : x
  2. Step 2: Convert to fraction form
    268,856.40/371,032.40 = 148,008.92/x
  3. Step 3: Cross multiply
    268,856.40x = 371,032.40 × 148,008.92
  4. Step 4: Simplify right side
    268,856.40x = 54,916,102,213.80
  5. Step 5: Solve for x
    x = 54,916,102,213.80/268,856.40
  6. Step 6: Final answer
    x = 204,258.12

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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.