Home / 220,771.28-331,053.24-102,368.72

Finding the Fourth Proportional to 220,771.28, 331,053.24 and 102,368.72

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Solution

The fourth proportional to 220,771.28, 331,053.24 and 102,368.72 is: 153,505.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,771.28 : 331,053.24 = 102,368.72 : x
  2. Step 2: Convert to fraction form
    220,771.28/331,053.24 = 102,368.72/x
  3. Step 3: Cross multiply
    220,771.28x = 331,053.24 × 102,368.72
  4. Step 4: Simplify right side
    220,771.28x = 33,889,496,430.65
  5. Step 5: Solve for x
    x = 33,889,496,430.65/220,771.28
  6. Step 6: Final answer
    x = 153,505.00

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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.