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Finding the Fourth Proportional to 255,445, 383,343.54 and 89,233

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Solution

The fourth proportional to 255,445, 383,343.54 and 89,233 is: 133,910.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,445 : 383,343.54 = 89,233 : x
  2. Step 2: Convert to fraction form
    255,445/383,343.54 = 89,233/x
  3. Step 3: Cross multiply
    255,445x = 383,343.54 × 89,233
  4. Step 4: Simplify right side
    255,445x = 34,206,894,104.82
  5. Step 5: Solve for x
    x = 34,206,894,104.82/255,445
  6. Step 6: Final answer
    x = 133,910.99

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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.