Home / 227,143.93-340,339.24-138,128.17

Finding the Fourth Proportional to 227,143.93, 340,339.24 and 138,128.17

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Solution

The fourth proportional to 227,143.93, 340,339.24 and 138,128.17 is: 206,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,143.93 : 340,339.24 = 138,128.17 : x
  2. Step 2: Convert to fraction form
    227,143.93/340,339.24 = 138,128.17/x
  3. Step 3: Cross multiply
    227,143.93x = 340,339.24 × 138,128.17
  4. Step 4: Simplify right side
    227,143.93x = 47,010,435,204.22
  5. Step 5: Solve for x
    x = 47,010,435,204.22/227,143.93
  6. Step 6: Final answer
    x = 206,963.20

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1.5x scale

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.