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Finding the Fourth Proportional to 227,628.90, 341,649.90 and 115,387.20

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Solution

The fourth proportional to 227,628.90, 341,649.90 and 115,387.20 is: 173,185.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,628.90 : 341,649.90 = 115,387.20 : x
  2. Step 2: Convert to fraction form
    227,628.90/341,649.90 = 115,387.20/x
  3. Step 3: Cross multiply
    227,628.90x = 341,649.90 × 115,387.20
  4. Step 4: Simplify right side
    227,628.90x = 39,422,025,341.28
  5. Step 5: Solve for x
    x = 39,422,025,341.28/227,628.90
  6. Step 6: Final answer
    x = 173,185.50

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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.