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Finding the Fourth Proportional to 490,203.91, 676,497.80 and 272,421.76

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Solution

The fourth proportional to 490,203.91, 676,497.80 and 272,421.76 is: 375,951.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,203.91 : 676,497.80 = 272,421.76 : x
  2. Step 2: Convert to fraction form
    490,203.91/676,497.80 = 272,421.76/x
  3. Step 3: Cross multiply
    490,203.91x = 676,497.80 × 272,421.76
  4. Step 4: Simplify right side
    490,203.91x = 184,292,720,301.94
  5. Step 5: Solve for x
    x = 184,292,720,301.94/490,203.91
  6. Step 6: Final answer
    x = 375,951.14

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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.