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Finding the Fourth Proportional to 272,167.20, 408,250.80 and 105,955.20

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Solution

The fourth proportional to 272,167.20, 408,250.80 and 105,955.20 is: 158,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,167.20 : 408,250.80 = 105,955.20 : x
  2. Step 2: Convert to fraction form
    272,167.20/408,250.80 = 105,955.20/x
  3. Step 3: Cross multiply
    272,167.20x = 408,250.80 × 105,955.20
  4. Step 4: Simplify right side
    272,167.20x = 43,256,295,164.16
  5. Step 5: Solve for x
    x = 43,256,295,164.16/272,167.20
  6. Step 6: Final answer
    x = 158,932.80

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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.