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Finding the Fourth Proportional to 270,045.32, 372,684.36 and 149,197.20

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Solution

The fourth proportional to 270,045.32, 372,684.36 and 149,197.20 is: 205,904.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,045.32 : 372,684.36 = 149,197.20 : x
  2. Step 2: Convert to fraction form
    270,045.32/372,684.36 = 149,197.20/x
  3. Step 3: Cross multiply
    270,045.32x = 372,684.36 × 149,197.20
  4. Step 4: Simplify right side
    270,045.32x = 55,603,462,995.79
  5. Step 5: Solve for x
    x = 55,603,462,995.79/270,045.32
  6. Step 6: Final answer
    x = 205,904.19

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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.