Home / 272,748.78-408,986.35-158,933.45

Finding the Fourth Proportional to 272,748.78, 408,986.35 and 158,933.45

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Solution

The fourth proportional to 272,748.78, 408,986.35 and 158,933.45 is: 238,320.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,748.78 : 408,986.35 = 158,933.45 : x
  2. Step 2: Convert to fraction form
    272,748.78/408,986.35 = 158,933.45/x
  3. Step 3: Cross multiply
    272,748.78x = 408,986.35 × 158,933.45
  4. Step 4: Simplify right side
    272,748.78x = 65,001,612,233.54
  5. Step 5: Solve for x
    x = 65,001,612,233.54/272,748.78
  6. Step 6: Final answer
    x = 238,320.45

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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.