Home / 306,042.47-422,330.19-170,072.93

Finding the Fourth Proportional to 306,042.47, 422,330.19 and 170,072.93

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Solution

The fourth proportional to 306,042.47, 422,330.19 and 170,072.93 is: 234,695.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,042.47 : 422,330.19 = 170,072.93 : x
  2. Step 2: Convert to fraction form
    306,042.47/422,330.19 = 170,072.93/x
  3. Step 3: Cross multiply
    306,042.47x = 422,330.19 × 170,072.93
  4. Step 4: Simplify right side
    306,042.47x = 71,826,930,729.11
  5. Step 5: Solve for x
    x = 71,826,930,729.11/306,042.47
  6. Step 6: Final answer
    x = 234,695.96

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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.