Home / 331,971.15-458,120.17-188,731.20

Finding the Fourth Proportional to 331,971.15, 458,120.17 and 188,731.20

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Solution

The fourth proportional to 331,971.15, 458,120.17 and 188,731.20 is: 260,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,971.15 : 458,120.17 = 188,731.20 : x
  2. Step 2: Convert to fraction form
    331,971.15/458,120.17 = 188,731.20/x
  3. Step 3: Cross multiply
    331,971.15x = 458,120.17 × 188,731.20
  4. Step 4: Simplify right side
    331,971.15x = 86,461,569,428.30
  5. Step 5: Solve for x
    x = 86,461,569,428.30/331,971.15
  6. Step 6: Final answer
    x = 260,449.05

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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.