Home / 266,380.02-399,650.22-79,391.52

Finding the Fourth Proportional to 266,380.02, 399,650.22 and 79,391.52

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Solution

The fourth proportional to 266,380.02, 399,650.22 and 79,391.52 is: 119,111.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,380.02 : 399,650.22 = 79,391.52 : x
  2. Step 2: Convert to fraction form
    266,380.02/399,650.22 = 79,391.52/x
  3. Step 3: Cross multiply
    266,380.02x = 399,650.22 × 79,391.52
  4. Step 4: Simplify right side
    266,380.02x = 31,728,838,434.13
  5. Step 5: Solve for x
    x = 31,728,838,434.13/266,380.02
  6. Step 6: Final answer
    x = 119,111.18

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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.