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Finding the Fourth Proportional to 170,846.10, 256,269.15 and 86,865.30

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Solution

The fourth proportional to 170,846.10, 256,269.15 and 86,865.30 is: 130,297.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,846.10 : 256,269.15 = 86,865.30 : x
  2. Step 2: Convert to fraction form
    170,846.10/256,269.15 = 86,865.30/x
  3. Step 3: Cross multiply
    170,846.10x = 256,269.15 × 86,865.30
  4. Step 4: Simplify right side
    170,846.10x = 22,260,896,595.50
  5. Step 5: Solve for x
    x = 22,260,896,595.50/170,846.10
  6. Step 6: Final answer
    x = 130,297.95

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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.