Home / 220,354.72-330,529.20-54,144.16

Finding the Fourth Proportional to 220,354.72, 330,529.20 and 54,144.16

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Solution

The fourth proportional to 220,354.72, 330,529.20 and 54,144.16 is: 81,215.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,354.72 : 330,529.20 = 54,144.16 : x
  2. Step 2: Convert to fraction form
    220,354.72/330,529.20 = 54,144.16/x
  3. Step 3: Cross multiply
    220,354.72x = 330,529.20 × 54,144.16
  4. Step 4: Simplify right side
    220,354.72x = 17,896,225,889.47
  5. Step 5: Solve for x
    x = 17,896,225,889.47/220,354.72
  6. Step 6: Final answer
    x = 81,215.53

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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.