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Finding the Fourth Proportional to 208,241.70, 312,330.15 and 58,467.30

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Solution

The fourth proportional to 208,241.70, 312,330.15 and 58,467.30 is: 87,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,241.70 : 312,330.15 = 58,467.30 : x
  2. Step 2: Convert to fraction form
    208,241.70/312,330.15 = 58,467.30/x
  3. Step 3: Cross multiply
    208,241.70x = 312,330.15 × 58,467.30
  4. Step 4: Simplify right side
    208,241.70x = 18,261,100,579.10
  5. Step 5: Solve for x
    x = 18,261,100,579.10/208,241.70
  6. Step 6: Final answer
    x = 87,691.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.