Home / 288,921.36-433,393.38-89,223.96

Finding the Fourth Proportional to 288,921.36, 433,393.38 and 89,223.96

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Solution

The fourth proportional to 288,921.36, 433,393.38 and 89,223.96 is: 133,839.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,921.36 : 433,393.38 = 89,223.96 : x
  2. Step 2: Convert to fraction form
    288,921.36/433,393.38 = 89,223.96/x
  3. Step 3: Cross multiply
    288,921.36x = 433,393.38 × 89,223.96
  4. Step 4: Simplify right side
    288,921.36x = 38,669,073,601.38
  5. Step 5: Solve for x
    x = 38,669,073,601.38/288,921.36
  6. Step 6: Final answer
    x = 133,839.44

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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.