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Finding the Fourth Proportional to 222,142.80, 332,695.80 and 217,688.40

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Solution

The fourth proportional to 222,142.80, 332,695.80 and 217,688.40 is: 326,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,142.80 : 332,695.80 = 217,688.40 : x
  2. Step 2: Convert to fraction form
    222,142.80/332,695.80 = 217,688.40/x
  3. Step 3: Cross multiply
    222,142.80x = 332,695.80 × 217,688.40
  4. Step 4: Simplify right side
    222,142.80x = 72,424,016,388.72
  5. Step 5: Solve for x
    x = 72,424,016,388.72/222,142.80
  6. Step 6: Final answer
    x = 326,024.59

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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.