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Finding the Fourth Proportional to 195,425.60, 293,138.40 and 172,078.40

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Solution

The fourth proportional to 195,425.60, 293,138.40 and 172,078.40 is: 258,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,425.60 : 293,138.40 = 172,078.40 : x
  2. Step 2: Convert to fraction form
    195,425.60/293,138.40 = 172,078.40/x
  3. Step 3: Cross multiply
    195,425.60x = 293,138.40 × 172,078.40
  4. Step 4: Simplify right side
    195,425.60x = 50,442,786,850.56
  5. Step 5: Solve for x
    x = 50,442,786,850.56/195,425.60
  6. Step 6: Final answer
    x = 258,117.60

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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.