Home / 318,777.95-439,912.87-173,581.48

Finding the Fourth Proportional to 318,777.95, 439,912.87 and 173,581.48

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Solution

The fourth proportional to 318,777.95, 439,912.87 and 173,581.48 is: 239,542.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,777.95 : 439,912.87 = 173,581.48 : x
  2. Step 2: Convert to fraction form
    318,777.95/439,912.87 = 173,581.48/x
  3. Step 3: Cross multiply
    318,777.95x = 439,912.87 × 173,581.48
  4. Step 4: Simplify right side
    318,777.95x = 76,360,723,978.18
  5. Step 5: Solve for x
    x = 76,360,723,978.18/318,777.95
  6. Step 6: Final answer
    x = 239,542.05

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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.