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Finding the Fourth Proportional to 438,601.60, 658,161.60 and 158,082.40

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Solution

The fourth proportional to 438,601.60, 658,161.60 and 158,082.40 is: 237,217.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,601.60 : 658,161.60 = 158,082.40 : x
  2. Step 2: Convert to fraction form
    438,601.60/658,161.60 = 158,082.40/x
  3. Step 3: Cross multiply
    438,601.60x = 658,161.60 × 158,082.40
  4. Step 4: Simplify right side
    438,601.60x = 104,043,765,315.84
  5. Step 5: Solve for x
    x = 104,043,765,315.84/438,601.60
  6. Step 6: Final answer
    x = 237,217.02

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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.