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Finding the Fourth Proportional to 221,570.90, 332,356.35 and 63,815.30

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Solution

The fourth proportional to 221,570.90, 332,356.35 and 63,815.30 is: 95,722.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,570.90 : 332,356.35 = 63,815.30 : x
  2. Step 2: Convert to fraction form
    221,570.90/332,356.35 = 63,815.30/x
  3. Step 3: Cross multiply
    221,570.90x = 332,356.35 × 63,815.30
  4. Step 4: Simplify right side
    221,570.90x = 21,209,420,182.16
  5. Step 5: Solve for x
    x = 21,209,420,182.16/221,570.90
  6. Step 6: Final answer
    x = 95,722.95

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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.