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Finding the Fourth Proportional to 207,466.80, 311,200.20 and 157,700.40

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Solution

The fourth proportional to 207,466.80, 311,200.20 and 157,700.40 is: 236,550.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,466.80 : 311,200.20 = 157,700.40 : x
  2. Step 2: Convert to fraction form
    207,466.80/311,200.20 = 157,700.40/x
  3. Step 3: Cross multiply
    207,466.80x = 311,200.20 × 157,700.40
  4. Step 4: Simplify right side
    207,466.80x = 49,076,396,020.08
  5. Step 5: Solve for x
    x = 49,076,396,020.08/207,466.80
  6. Step 6: Final answer
    x = 236,550.60

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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.