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Finding the Fourth Proportional to 490,200.96, 676,462.58 and 272,408.90

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Solution

The fourth proportional to 490,200.96, 676,462.58 and 272,408.90 is: 375,916.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,200.96 : 676,462.58 = 272,408.90 : x
  2. Step 2: Convert to fraction form
    490,200.96/676,462.58 = 272,408.90/x
  3. Step 3: Cross multiply
    490,200.96x = 676,462.58 × 272,408.90
  4. Step 4: Simplify right side
    490,200.96x = 184,274,427,308.96
  5. Step 5: Solve for x
    x = 184,274,427,308.96/490,200.96
  6. Step 6: Final answer
    x = 375,916.09

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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.