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Finding the Fourth Proportional to 197,689.88, 296,538.42 and 71,339.60

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Solution

The fourth proportional to 197,689.88, 296,538.42 and 71,339.60 is: 107,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,689.88 : 296,538.42 = 71,339.60 : x
  2. Step 2: Convert to fraction form
    197,689.88/296,538.42 = 71,339.60/x
  3. Step 3: Cross multiply
    197,689.88x = 296,538.42 × 71,339.60
  4. Step 4: Simplify right side
    197,689.88x = 21,154,932,267.43
  5. Step 5: Solve for x
    x = 21,154,932,267.43/197,689.88
  6. Step 6: Final answer
    x = 107,010.70

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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.