Home / 400,431.08-552,717.90-230,778.20

Finding the Fourth Proportional to 400,431.08, 552,717.90 and 230,778.20

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Solution

The fourth proportional to 400,431.08, 552,717.90 and 230,778.20 is: 318,544.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,431.08 : 552,717.90 = 230,778.20 : x
  2. Step 2: Convert to fraction form
    400,431.08/552,717.90 = 230,778.20/x
  3. Step 3: Cross multiply
    400,431.08x = 552,717.90 × 230,778.20
  4. Step 4: Simplify right side
    400,431.08x = 127,555,242,069.78
  5. Step 5: Solve for x
    x = 127,555,242,069.78/400,431.08
  6. Step 6: Final answer
    x = 318,544.81

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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.