Home / 636,431.20-954,625.20-163,121.20

Finding the Fourth Proportional to 636,431.20, 954,625.20 and 163,121.20

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Solution

The fourth proportional to 636,431.20, 954,625.20 and 163,121.20 is: 244,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,431.20 : 954,625.20 = 163,121.20 : x
  2. Step 2: Convert to fraction form
    636,431.20/954,625.20 = 163,121.20/x
  3. Step 3: Cross multiply
    636,431.20x = 954,625.20 × 163,121.20
  4. Step 4: Simplify right side
    636,431.20x = 155,719,608,174.24
  5. Step 5: Solve for x
    x = 155,719,608,174.24/636,431.20
  6. Step 6: Final answer
    x = 244,676.26

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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.