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Finding the Fourth Proportional to 397,258.20, 596,117.70 and 147,965.40

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Solution

The fourth proportional to 397,258.20, 596,117.70 and 147,965.40 is: 222,033.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,258.20 : 596,117.70 = 147,965.40 : x
  2. Step 2: Convert to fraction form
    397,258.20/596,117.70 = 147,965.40/x
  3. Step 3: Cross multiply
    397,258.20x = 596,117.70 × 147,965.40
  4. Step 4: Simplify right side
    397,258.20x = 88,204,793,927.58
  5. Step 5: Solve for x
    x = 88,204,793,927.58/397,258.20
  6. Step 6: Final answer
    x = 222,033.92

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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.