Home / 258,219.20-356,375.76-145,041.92

Finding the Fourth Proportional to 258,219.20, 356,375.76 and 145,041.92

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Solution

The fourth proportional to 258,219.20, 356,375.76 and 145,041.92 is: 200,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,219.20 : 356,375.76 = 145,041.92 : x
  2. Step 2: Convert to fraction form
    258,219.20/356,375.76 = 145,041.92/x
  3. Step 3: Cross multiply
    258,219.20x = 356,375.76 × 145,041.92
  4. Step 4: Simplify right side
    258,219.20x = 51,689,424,471.86
  5. Step 5: Solve for x
    x = 51,689,424,471.86/258,219.20
  6. Step 6: Final answer
    x = 200,176.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.