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Finding the Fourth Proportional to 490,169.93, 676,421.00 and 272,372.97

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Solution

The fourth proportional to 490,169.93, 676,421.00 and 272,372.97 is: 375,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,169.93 : 676,421.00 = 272,372.97 : x
  2. Step 2: Convert to fraction form
    490,169.93/676,421.00 = 272,372.97/x
  3. Step 3: Cross multiply
    490,169.93x = 676,421.00 × 272,372.97
  4. Step 4: Simplify right side
    490,169.93x = 184,238,795,378.51
  5. Step 5: Solve for x
    x = 184,238,795,378.51/490,169.93
  6. Step 6: Final answer
    x = 375,867.20

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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.