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Finding the Fourth Proportional to 304,648.56, 420,414.96 and 170,512.56

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Solution

The fourth proportional to 304,648.56, 420,414.96 and 170,512.56 is: 235,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,648.56 : 420,414.96 = 170,512.56 : x
  2. Step 2: Convert to fraction form
    304,648.56/420,414.96 = 170,512.56/x
  3. Step 3: Cross multiply
    304,648.56x = 420,414.96 × 170,512.56
  4. Step 4: Simplify right side
    304,648.56x = 71,686,031,091.90
  5. Step 5: Solve for x
    x = 71,686,031,091.90/304,648.56
  6. Step 6: Final answer
    x = 235,307.30

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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.