Home / 266,249.48-399,371.33-212,690.19

Finding the Fourth Proportional to 266,249.48, 399,371.33 and 212,690.19

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Solution

The fourth proportional to 266,249.48, 399,371.33 and 212,690.19 is: 319,032.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,249.48 : 399,371.33 = 212,690.19 : x
  2. Step 2: Convert to fraction form
    266,249.48/399,371.33 = 212,690.19/x
  3. Step 3: Cross multiply
    266,249.48x = 399,371.33 × 212,690.19
  4. Step 4: Simplify right side
    266,249.48x = 84,942,365,737.59
  5. Step 5: Solve for x
    x = 84,942,365,737.59/266,249.48
  6. Step 6: Final answer
    x = 319,032.98

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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.