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Finding the Fourth Proportional to 361,510.80, 498,883.72 and 198,171.28

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Solution

The fourth proportional to 361,510.80, 498,883.72 and 198,171.28 is: 273,475.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,510.80 : 498,883.72 = 198,171.28 : x
  2. Step 2: Convert to fraction form
    361,510.80/498,883.72 = 198,171.28/x
  3. Step 3: Cross multiply
    361,510.80x = 498,883.72 × 198,171.28
  4. Step 4: Simplify right side
    361,510.80x = 98,864,425,363.56
  5. Step 5: Solve for x
    x = 98,864,425,363.56/361,510.80
  6. Step 6: Final answer
    x = 273,475.72

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1.5x scale

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.