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Finding the Fourth Proportional to 207,080.40, 310,620.60 and 132,430.80

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Solution

The fourth proportional to 207,080.40, 310,620.60 and 132,430.80 is: 198,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,080.40 : 310,620.60 = 132,430.80 : x
  2. Step 2: Convert to fraction form
    207,080.40/310,620.60 = 132,430.80/x
  3. Step 3: Cross multiply
    207,080.40x = 310,620.60 × 132,430.80
  4. Step 4: Simplify right side
    207,080.40x = 41,135,734,554.48
  5. Step 5: Solve for x
    x = 41,135,734,554.48/207,080.40
  6. Step 6: Final answer
    x = 198,646.20

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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.