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Finding the Fourth Proportional to 361,573.97, 542,142.18 and 161,857.13

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Solution

The fourth proportional to 361,573.97, 542,142.18 and 161,857.13 is: 242,687.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,573.97 : 542,142.18 = 161,857.13 : x
  2. Step 2: Convert to fraction form
    361,573.97/542,142.18 = 161,857.13/x
  3. Step 3: Cross multiply
    361,573.97x = 542,142.18 × 161,857.13
  4. Step 4: Simplify right side
    361,573.97x = 87,749,574,596.03
  5. Step 5: Solve for x
    x = 87,749,574,596.03/361,573.97
  6. Step 6: Final answer
    x = 242,687.76

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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.