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Finding the Fourth Proportional to 255,503.16, 383,593.86 and 218,302.29

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Solution

The fourth proportional to 255,503.16, 383,593.86 and 218,302.29 is: 327,743.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,503.16 : 383,593.86 = 218,302.29 : x
  2. Step 2: Convert to fraction form
    255,503.16/383,593.86 = 218,302.29/x
  3. Step 3: Cross multiply
    255,503.16x = 383,593.86 × 218,302.29
  4. Step 4: Simplify right side
    255,503.16x = 83,739,418,067.94
  5. Step 5: Solve for x
    x = 83,739,418,067.94/255,503.16
  6. Step 6: Final answer
    x = 327,743.18

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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.