Home / 270,139.91-372,783.04-149,278.68

Finding the Fourth Proportional to 270,139.91, 372,783.04 and 149,278.68

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Solution

The fourth proportional to 270,139.91, 372,783.04 and 149,278.68 is: 205,999.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,139.91 : 372,783.04 = 149,278.68 : x
  2. Step 2: Convert to fraction form
    270,139.91/372,783.04 = 149,278.68/x
  3. Step 3: Cross multiply
    270,139.91x = 372,783.04 × 149,278.68
  4. Step 4: Simplify right side
    270,139.91x = 55,648,559,764.39
  5. Step 5: Solve for x
    x = 55,648,559,764.39/270,139.91
  6. Step 6: Final answer
    x = 205,999.04

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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.