Home / 227,320.90-340,981.35-138,747.40

Finding the Fourth Proportional to 227,320.90, 340,981.35 and 138,747.40

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Solution

The fourth proportional to 227,320.90, 340,981.35 and 138,747.40 is: 208,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,320.90 : 340,981.35 = 138,747.40 : x
  2. Step 2: Convert to fraction form
    227,320.90/340,981.35 = 138,747.40/x
  3. Step 3: Cross multiply
    227,320.90x = 340,981.35 × 138,747.40
  4. Step 4: Simplify right side
    227,320.90x = 47,310,275,760.99
  5. Step 5: Solve for x
    x = 47,310,275,760.99/227,320.90
  6. Step 6: Final answer
    x = 208,121.10

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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.