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Finding the Fourth Proportional to 203,290.40, 304,244.40 and 178,407.20

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Solution

The fourth proportional to 203,290.40, 304,244.40 and 178,407.20 is: 267,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,290.40 : 304,244.40 = 178,407.20 : x
  2. Step 2: Convert to fraction form
    203,290.40/304,244.40 = 178,407.20/x
  3. Step 3: Cross multiply
    203,290.40x = 304,244.40 × 178,407.20
  4. Step 4: Simplify right side
    203,290.40x = 54,279,391,519.68
  5. Step 5: Solve for x
    x = 54,279,391,519.68/203,290.40
  6. Step 6: Final answer
    x = 267,004.20

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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.