Home / 266,144.14-399,216.22-212,585.35

Finding the Fourth Proportional to 266,144.14, 399,216.22 and 212,585.35

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Solution

The fourth proportional to 266,144.14, 399,216.22 and 212,585.35 is: 318,878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,144.14 : 399,216.22 = 212,585.35 : x
  2. Step 2: Convert to fraction form
    266,144.14/399,216.22 = 212,585.35/x
  3. Step 3: Cross multiply
    266,144.14x = 399,216.22 × 212,585.35
  4. Step 4: Simplify right side
    266,144.14x = 84,867,520,196.20
  5. Step 5: Solve for x
    x = 84,867,520,196.20/266,144.14
  6. Step 6: Final answer
    x = 318,878.04

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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.