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Finding the Fourth Proportional to 221,365.70, 332,005.35 and 71,569.70

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Solution

The fourth proportional to 221,365.70, 332,005.35 and 71,569.70 is: 107,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,365.70 : 332,005.35 = 71,569.70 : x
  2. Step 2: Convert to fraction form
    221,365.70/332,005.35 = 71,569.70/x
  3. Step 3: Cross multiply
    221,365.70x = 332,005.35 × 71,569.70
  4. Step 4: Simplify right side
    221,365.70x = 23,761,523,297.90
  5. Step 5: Solve for x
    x = 23,761,523,297.90/221,365.70
  6. Step 6: Final answer
    x = 107,340.58

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1.5x scale

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.