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Finding the Fourth Proportional to 255,270.75, 383,081.10 and 89,058.75

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Solution

The fourth proportional to 255,270.75, 383,081.10 and 89,058.75 is: 133,649.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,270.75 : 383,081.10 = 89,058.75 : x
  2. Step 2: Convert to fraction form
    255,270.75/383,081.10 = 89,058.75/x
  3. Step 3: Cross multiply
    255,270.75x = 383,081.10 × 89,058.75
  4. Step 4: Simplify right side
    255,270.75x = 34,116,723,914.63
  5. Step 5: Solve for x
    x = 34,116,723,914.63/255,270.75
  6. Step 6: Final answer
    x = 133,649.17

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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.