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Finding the Fourth Proportional to 170,808.10, 256,250.55 and 100,651.30

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Solution

The fourth proportional to 170,808.10, 256,250.55 and 100,651.30 is: 150,999.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,808.10 : 256,250.55 = 100,651.30 : x
  2. Step 2: Convert to fraction form
    170,808.10/256,250.55 = 100,651.30/x
  3. Step 3: Cross multiply
    170,808.10x = 256,250.55 × 100,651.30
  4. Step 4: Simplify right side
    170,808.10x = 25,791,950,983.22
  5. Step 5: Solve for x
    x = 25,791,950,983.22/170,808.10
  6. Step 6: Final answer
    x = 150,999.58

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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.