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Finding the Fourth Proportional to 221,174.28, 331,761.36 and 73,430.28

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Solution

The fourth proportional to 221,174.28, 331,761.36 and 73,430.28 is: 110,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,174.28 : 331,761.36 = 73,430.28 : x
  2. Step 2: Convert to fraction form
    221,174.28/331,761.36 = 73,430.28/x
  3. Step 3: Cross multiply
    221,174.28x = 331,761.36 × 73,430.28
  4. Step 4: Simplify right side
    221,174.28x = 24,361,329,557.98
  5. Step 5: Solve for x
    x = 24,361,329,557.98/221,174.28
  6. Step 6: Final answer
    x = 110,145.40

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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.