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Finding the Fourth Proportional to 255,279.72, 383,094.54 and 89,067.72

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Solution

The fourth proportional to 255,279.72, 383,094.54 and 89,067.72 is: 133,662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,279.72 : 383,094.54 = 89,067.72 : x
  2. Step 2: Convert to fraction form
    255,279.72/383,094.54 = 89,067.72/x
  3. Step 3: Cross multiply
    255,279.72x = 383,094.54 × 89,067.72
  4. Step 4: Simplify right side
    255,279.72x = 34,121,357,222.25
  5. Step 5: Solve for x
    x = 34,121,357,222.25/255,279.72
  6. Step 6: Final answer
    x = 133,662.62

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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.