Home / 426,195.20-639,062.40-176,902.40

Finding the Fourth Proportional to 426,195.20, 639,062.40 and 176,902.40

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Solution

The fourth proportional to 426,195.20, 639,062.40 and 176,902.40 is: 265,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,195.20 : 639,062.40 = 176,902.40 : x
  2. Step 2: Convert to fraction form
    426,195.20/639,062.40 = 176,902.40/x
  3. Step 3: Cross multiply
    426,195.20x = 639,062.40 × 176,902.40
  4. Step 4: Simplify right side
    426,195.20x = 113,051,672,309.76
  5. Step 5: Solve for x
    x = 113,051,672,309.76/426,195.20
  6. Step 6: Final answer
    x = 265,257.97

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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.