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Finding the Fourth Proportional to 206,933.60, 310,400.40 and 73,818.20

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Solution

The fourth proportional to 206,933.60, 310,400.40 and 73,818.20 is: 110,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,933.60 : 310,400.40 = 73,818.20 : x
  2. Step 2: Convert to fraction form
    206,933.60/310,400.40 = 73,818.20/x
  3. Step 3: Cross multiply
    206,933.60x = 310,400.40 × 73,818.20
  4. Step 4: Simplify right side
    206,933.60x = 22,913,198,807.28
  5. Step 5: Solve for x
    x = 22,913,198,807.28/206,933.60
  6. Step 6: Final answer
    x = 110,727.30

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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.