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Finding the Fourth Proportional to 161,687.20, 242,530.80 and 159,062.80

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Solution

The fourth proportional to 161,687.20, 242,530.80 and 159,062.80 is: 238,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,687.20 : 242,530.80 = 159,062.80 : x
  2. Step 2: Convert to fraction form
    161,687.20/242,530.80 = 159,062.80/x
  3. Step 3: Cross multiply
    161,687.20x = 242,530.80 × 159,062.80
  4. Step 4: Simplify right side
    161,687.20x = 38,577,628,134.24
  5. Step 5: Solve for x
    x = 38,577,628,134.24/161,687.20
  6. Step 6: Final answer
    x = 238,594.20

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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.