Home / 266,927.10-400,308.28-77,401.44

Finding the Fourth Proportional to 266,927.10, 400,308.28 and 77,401.44

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Solution

The fourth proportional to 266,927.10, 400,308.28 and 77,401.44 is: 116,078.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,927.10 : 400,308.28 = 77,401.44 : x
  2. Step 2: Convert to fraction form
    266,927.10/400,308.28 = 77,401.44/x
  3. Step 3: Cross multiply
    266,927.10x = 400,308.28 × 77,401.44
  4. Step 4: Simplify right side
    266,927.10x = 30,984,437,315.92
  5. Step 5: Solve for x
    x = 30,984,437,315.92/266,927.10
  6. Step 6: Final answer
    x = 116,078.27

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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.