Home / 426,155.18-639,163.00-173,425.46

Finding the Fourth Proportional to 426,155.18, 639,163.00 and 173,425.46

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Solution

The fourth proportional to 426,155.18, 639,163.00 and 173,425.46 is: 260,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,155.18 : 639,163.00 = 173,425.46 : x
  2. Step 2: Convert to fraction form
    426,155.18/639,163.00 = 173,425.46/x
  3. Step 3: Cross multiply
    426,155.18x = 639,163.00 × 173,425.46
  4. Step 4: Simplify right side
    426,155.18x = 110,847,134,310.95
  5. Step 5: Solve for x
    x = 110,847,134,310.95/426,155.18
  6. Step 6: Final answer
    x = 260,109.79

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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.