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Finding the Fourth Proportional to 426,182.04, 639,106.86 and 159,797.40

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Solution

The fourth proportional to 426,182.04, 639,106.86 and 159,797.40 is: 239,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,182.04 : 639,106.86 = 159,797.40 : x
  2. Step 2: Convert to fraction form
    426,182.04/639,106.86 = 159,797.40/x
  3. Step 3: Cross multiply
    426,182.04x = 639,106.86 × 159,797.40
  4. Step 4: Simplify right side
    426,182.04x = 102,127,614,550.16
  5. Step 5: Solve for x
    x = 102,127,614,550.16/426,182.04
  6. Step 6: Final answer
    x = 239,633.78

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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.