Home / 257,722.31-386,428.04-115,541.83

Finding the Fourth Proportional to 257,722.31, 386,428.04 and 115,541.83

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Solution

The fourth proportional to 257,722.31, 386,428.04 and 115,541.83 is: 173,243.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,722.31 : 386,428.04 = 115,541.83 : x
  2. Step 2: Convert to fraction form
    257,722.31/386,428.04 = 115,541.83/x
  3. Step 3: Cross multiply
    257,722.31x = 386,428.04 × 115,541.83
  4. Step 4: Simplify right side
    257,722.31x = 44,648,600,395.06
  5. Step 5: Solve for x
    x = 44,648,600,395.06/257,722.31
  6. Step 6: Final answer
    x = 173,243.06

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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.