Home / 218,715.32-301,828.20-123,223.52

Finding the Fourth Proportional to 218,715.32, 301,828.20 and 123,223.52

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Solution

The fourth proportional to 218,715.32, 301,828.20 and 123,223.52 is: 170,049.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,715.32 : 301,828.20 = 123,223.52 : x
  2. Step 2: Convert to fraction form
    218,715.32/301,828.20 = 123,223.52/x
  3. Step 3: Cross multiply
    218,715.32x = 301,828.20 × 123,223.52
  4. Step 4: Simplify right side
    218,715.32x = 37,192,333,239.26
  5. Step 5: Solve for x
    x = 37,192,333,239.26/218,715.32
  6. Step 6: Final answer
    x = 170,049.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.