Home / 266,890.65-400,350.56-89,381.58

Finding the Fourth Proportional to 266,890.65, 400,350.56 and 89,381.58

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Solution

The fourth proportional to 266,890.65, 400,350.56 and 89,381.58 is: 134,077.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,890.65 : 400,350.56 = 89,381.58 : x
  2. Step 2: Convert to fraction form
    266,890.65/400,350.56 = 89,381.58/x
  3. Step 3: Cross multiply
    266,890.65x = 400,350.56 × 89,381.58
  4. Step 4: Simplify right side
    266,890.65x = 35,783,965,159.78
  5. Step 5: Solve for x
    x = 35,783,965,159.78/266,890.65
  6. Step 6: Final answer
    x = 134,077.25

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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.