Home / 308,932.60-463,442.10-131,438.20

Finding the Fourth Proportional to 308,932.60, 463,442.10 and 131,438.20

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Solution

The fourth proportional to 308,932.60, 463,442.10 and 131,438.20 is: 197,175.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,932.60 : 463,442.10 = 131,438.20 : x
  2. Step 2: Convert to fraction form
    308,932.60/463,442.10 = 131,438.20/x
  3. Step 3: Cross multiply
    308,932.60x = 463,442.10 × 131,438.20
  4. Step 4: Simplify right side
    308,932.60x = 60,913,995,428.22
  5. Step 5: Solve for x
    x = 60,913,995,428.22/308,932.60
  6. Step 6: Final answer
    x = 197,175.68

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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.