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Finding the Fourth Proportional to 439,773.80, 659,660.70 and 159,492.20

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Solution

The fourth proportional to 439,773.80, 659,660.70 and 159,492.20 is: 239,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,773.80 : 659,660.70 = 159,492.20 : x
  2. Step 2: Convert to fraction form
    439,773.80/659,660.70 = 159,492.20/x
  3. Step 3: Cross multiply
    439,773.80x = 659,660.70 × 159,492.20
  4. Step 4: Simplify right side
    439,773.80x = 105,210,736,296.54
  5. Step 5: Solve for x
    x = 105,210,736,296.54/439,773.80
  6. Step 6: Final answer
    x = 239,238.30

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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.