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Finding the Fourth Proportional to 272,129.86, 375,543.71 and 149,627.42

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Solution

The fourth proportional to 272,129.86, 375,543.71 and 149,627.42 is: 206,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,129.86 : 375,543.71 = 149,627.42 : x
  2. Step 2: Convert to fraction form
    272,129.86/375,543.71 = 149,627.42/x
  3. Step 3: Cross multiply
    272,129.86x = 375,543.71 × 149,627.42
  4. Step 4: Simplify right side
    272,129.86x = 56,191,635,676.39
  5. Step 5: Solve for x
    x = 56,191,635,676.39/272,129.86
  6. Step 6: Final answer
    x = 206,488.32

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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.