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Finding the Fourth Proportional to 132,401.60, 198,583.20 and 38,897.60

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Solution

The fourth proportional to 132,401.60, 198,583.20 and 38,897.60 is: 58,340.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,401.60 : 198,583.20 = 38,897.60 : x
  2. Step 2: Convert to fraction form
    132,401.60/198,583.20 = 38,897.60/x
  3. Step 3: Cross multiply
    132,401.60x = 198,583.20 × 38,897.60
  4. Step 4: Simplify right side
    132,401.60x = 7,724,409,880.32
  5. Step 5: Solve for x
    x = 7,724,409,880.32/132,401.60
  6. Step 6: Final answer
    x = 58,340.76

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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.