Home / 317,719.92-438,515.60-196,914.90

Finding the Fourth Proportional to 317,719.92, 438,515.60 and 196,914.90

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Solution

The fourth proportional to 317,719.92, 438,515.60 and 196,914.90 is: 271,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,719.92 : 438,515.60 = 196,914.90 : x
  2. Step 2: Convert to fraction form
    317,719.92/438,515.60 = 196,914.90/x
  3. Step 3: Cross multiply
    317,719.92x = 438,515.60 × 196,914.90
  4. Step 4: Simplify right side
    317,719.92x = 86,350,254,269.47
  5. Step 5: Solve for x
    x = 86,350,254,269.47/317,719.92
  6. Step 6: Final answer
    x = 271,781.05

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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.