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Finding the Fourth Proportional to 170,866.10, 256,250.73 and 70,902.65

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Solution

The fourth proportional to 170,866.10, 256,250.73 and 70,902.65 is: 106,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,866.10 : 256,250.73 = 70,902.65 : x
  2. Step 2: Convert to fraction form
    170,866.10/256,250.73 = 70,902.65/x
  3. Step 3: Cross multiply
    170,866.10x = 256,250.73 × 70,902.65
  4. Step 4: Simplify right side
    170,866.10x = 18,168,855,821.43
  5. Step 5: Solve for x
    x = 18,168,855,821.43/170,866.10
  6. Step 6: Final answer
    x = 106,333.88

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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.