Home / 400,172.90-552,286.23-230,440.10

Finding the Fourth Proportional to 400,172.90, 552,286.23 and 230,440.10

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Solution

The fourth proportional to 400,172.90, 552,286.23 and 230,440.10 is: 318,034.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,172.90 : 552,286.23 = 230,440.10 : x
  2. Step 2: Convert to fraction form
    400,172.90/552,286.23 = 230,440.10/x
  3. Step 3: Cross multiply
    400,172.90x = 552,286.23 × 230,440.10
  4. Step 4: Simplify right side
    400,172.90x = 127,268,894,069.82
  5. Step 5: Solve for x
    x = 127,268,894,069.82/400,172.90
  6. Step 6: Final answer
    x = 318,034.76

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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.