Home / 221,287.20-331,980.15-63,503.36

Finding the Fourth Proportional to 221,287.20, 331,980.15 and 63,503.36

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Solution

The fourth proportional to 221,287.20, 331,980.15 and 63,503.36 is: 95,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,287.20 : 331,980.15 = 63,503.36 : x
  2. Step 2: Convert to fraction form
    221,287.20/331,980.15 = 63,503.36/x
  3. Step 3: Cross multiply
    221,287.20x = 331,980.15 × 63,503.36
  4. Step 4: Simplify right side
    221,287.20x = 21,081,854,978.30
  5. Step 5: Solve for x
    x = 21,081,854,978.30/221,287.20
  6. Step 6: Final answer
    x = 95,269.20

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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.