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Finding the Fourth Proportional to 171,227.60, 256,841.40 and 87,246.80

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Solution

The fourth proportional to 171,227.60, 256,841.40 and 87,246.80 is: 130,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,227.60 : 256,841.40 = 87,246.80 : x
  2. Step 2: Convert to fraction form
    171,227.60/256,841.40 = 87,246.80/x
  3. Step 3: Cross multiply
    171,227.60x = 256,841.40 × 87,246.80
  4. Step 4: Simplify right side
    171,227.60x = 22,408,590,257.52
  5. Step 5: Solve for x
    x = 22,408,590,257.52/171,227.60
  6. Step 6: Final answer
    x = 130,870.20

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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.