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Finding the Fourth Proportional to 240,722.78, 361,119.33 and 72,256.38

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Solution

The fourth proportional to 240,722.78, 361,119.33 and 72,256.38 is: 108,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,722.78 : 361,119.33 = 72,256.38 : x
  2. Step 2: Convert to fraction form
    240,722.78/361,119.33 = 72,256.38/x
  3. Step 3: Cross multiply
    240,722.78x = 361,119.33 × 72,256.38
  4. Step 4: Simplify right side
    240,722.78x = 26,093,175,533.83
  5. Step 5: Solve for x
    x = 26,093,175,533.83/240,722.78
  6. Step 6: Final answer
    x = 108,395.13

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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.