Home / 215,621.74-323,495.01-89,238.65

Finding the Fourth Proportional to 215,621.74, 323,495.01 and 89,238.65

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Solution

The fourth proportional to 215,621.74, 323,495.01 and 89,238.65 is: 133,883.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,621.74 : 323,495.01 = 89,238.65 : x
  2. Step 2: Convert to fraction form
    215,621.74/323,495.01 = 89,238.65/x
  3. Step 3: Cross multiply
    215,621.74x = 323,495.01 × 89,238.65
  4. Step 4: Simplify right side
    215,621.74x = 28,868,257,974.14
  5. Step 5: Solve for x
    x = 28,868,257,974.14/215,621.74
  6. Step 6: Final answer
    x = 133,883.80

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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.