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Finding the Fourth Proportional to 400,449.40, 552,645.84 and 230,680.60

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Solution

The fourth proportional to 400,449.40, 552,645.84 and 230,680.60 is: 318,354.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,449.40 : 552,645.84 = 230,680.60 : x
  2. Step 2: Convert to fraction form
    400,449.40/552,645.84 = 230,680.60/x
  3. Step 3: Cross multiply
    400,449.40x = 552,645.84 × 230,680.60
  4. Step 4: Simplify right side
    400,449.40x = 127,484,673,958.70
  5. Step 5: Solve for x
    x = 127,484,673,958.70/400,449.40
  6. Step 6: Final answer
    x = 318,354.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.