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Finding the Fourth Proportional to 439,903.24, 659,854.62 and 159,420.04

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Solution

The fourth proportional to 439,903.24, 659,854.62 and 159,420.04 is: 239,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,903.24 : 659,854.62 = 159,420.04 : x
  2. Step 2: Convert to fraction form
    439,903.24/659,854.62 = 159,420.04/x
  3. Step 3: Cross multiply
    439,903.24x = 659,854.62 × 159,420.04
  4. Step 4: Simplify right side
    439,903.24x = 105,194,049,914.59
  5. Step 5: Solve for x
    x = 105,194,049,914.59/439,903.24
  6. Step 6: Final answer
    x = 239,129.97

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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.