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Finding the Fourth Proportional to 270,277.20, 372,983.40 and 149,425.20

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Solution

The fourth proportional to 270,277.20, 372,983.40 and 149,425.20 is: 206,207.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,277.20 : 372,983.40 = 149,425.20 : x
  2. Step 2: Convert to fraction form
    270,277.20/372,983.40 = 149,425.20/x
  3. Step 3: Cross multiply
    270,277.20x = 372,983.40 × 149,425.20
  4. Step 4: Simplify right side
    270,277.20x = 55,733,119,141.68
  5. Step 5: Solve for x
    x = 55,733,119,141.68/270,277.20
  6. Step 6: Final answer
    x = 206,207.25

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1.5x scale

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.