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Finding the Fourth Proportional to 369,003.60, 553,505.40 and 132,370.20

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Solution

The fourth proportional to 369,003.60, 553,505.40 and 132,370.20 is: 198,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,003.60 : 553,505.40 = 132,370.20 : x
  2. Step 2: Convert to fraction form
    369,003.60/553,505.40 = 132,370.20/x
  3. Step 3: Cross multiply
    369,003.60x = 553,505.40 × 132,370.20
  4. Step 4: Simplify right side
    369,003.60x = 73,267,620,499.08
  5. Step 5: Solve for x
    x = 73,267,620,499.08/369,003.60
  6. Step 6: Final answer
    x = 198,555.30

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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.