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Finding the Fourth Proportional to 207,273.60, 310,910.40 and 74,158.20

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Solution

The fourth proportional to 207,273.60, 310,910.40 and 74,158.20 is: 111,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,273.60 : 310,910.40 = 74,158.20 : x
  2. Step 2: Convert to fraction form
    207,273.60/310,910.40 = 74,158.20/x
  3. Step 3: Cross multiply
    207,273.60x = 310,910.40 × 74,158.20
  4. Step 4: Simplify right side
    207,273.60x = 23,056,555,625.28
  5. Step 5: Solve for x
    x = 23,056,555,625.28/207,273.60
  6. Step 6: Final answer
    x = 111,237.30

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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.