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Finding the Fourth Proportional to 490,169.80, 676,420.82 and 272,372.85

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Solution

The fourth proportional to 490,169.80, 676,420.82 and 272,372.85 is: 375,867.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,169.80 : 676,420.82 = 272,372.85 : x
  2. Step 2: Convert to fraction form
    490,169.80/676,420.82 = 272,372.85/x
  3. Step 3: Cross multiply
    490,169.80x = 676,420.82 × 272,372.85
  4. Step 4: Simplify right side
    490,169.80x = 184,238,666,542.74
  5. Step 5: Solve for x
    x = 184,238,666,542.74/490,169.80
  6. Step 6: Final answer
    x = 375,867.03

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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.