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Finding the Fourth Proportional to 361,509.80, 498,882.34 and 198,170.28

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Solution

The fourth proportional to 361,509.80, 498,882.34 and 198,170.28 is: 273,474.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,509.80 : 498,882.34 = 198,170.28 : x
  2. Step 2: Convert to fraction form
    361,509.80/498,882.34 = 198,170.28/x
  3. Step 3: Cross multiply
    361,509.80x = 498,882.34 × 198,170.28
  4. Step 4: Simplify right side
    361,509.80x = 98,863,653,004.86
  5. Step 5: Solve for x
    x = 98,863,653,004.86/361,509.80
  6. Step 6: Final answer
    x = 273,474.34

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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.