Home / 266,037.03-399,121.16-79,048.53

Finding the Fourth Proportional to 266,037.03, 399,121.16 and 79,048.53

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Solution

The fourth proportional to 266,037.03, 399,121.16 and 79,048.53 is: 118,592.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,037.03 : 399,121.16 = 79,048.53 : x
  2. Step 2: Convert to fraction form
    266,037.03/399,121.16 = 79,048.53/x
  3. Step 3: Cross multiply
    266,037.03x = 399,121.16 × 79,048.53
  4. Step 4: Simplify right side
    266,037.03x = 31,549,940,594.65
  5. Step 5: Solve for x
    x = 31,549,940,594.65/266,037.03
  6. Step 6: Final answer
    x = 118,592.29

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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.