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Finding the Fourth Proportional to 255,225, 383,012.82 and 89,013

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Solution

The fourth proportional to 255,225, 383,012.82 and 89,013 is: 133,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,225 : 383,012.82 = 89,013 : x
  2. Step 2: Convert to fraction form
    255,225/383,012.82 = 89,013/x
  3. Step 3: Cross multiply
    255,225x = 383,012.82 × 89,013
  4. Step 4: Simplify right side
    255,225x = 34,093,120,146.66
  5. Step 5: Solve for x
    x = 34,093,120,146.66/255,225
  6. Step 6: Final answer
    x = 133,580.65

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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.