Home / 208,414.60-312,621.90-97,822.60

Finding the Fourth Proportional to 208,414.60, 312,621.90 and 97,822.60

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Solution

The fourth proportional to 208,414.60, 312,621.90 and 97,822.60 is: 146,733.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,414.60 : 312,621.90 = 97,822.60 : x
  2. Step 2: Convert to fraction form
    208,414.60/312,621.90 = 97,822.60/x
  3. Step 3: Cross multiply
    208,414.60x = 312,621.90 × 97,822.60
  4. Step 4: Simplify right side
    208,414.60x = 30,581,487,074.94
  5. Step 5: Solve for x
    x = 30,581,487,074.94/208,414.60
  6. Step 6: Final answer
    x = 146,733.90

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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.