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Finding the Fourth Proportional to 170,699.80, 256,049.70 and 117,555.70

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Solution

The fourth proportional to 170,699.80, 256,049.70 and 117,555.70 is: 176,333.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,699.80 : 256,049.70 = 117,555.70 : x
  2. Step 2: Convert to fraction form
    170,699.80/256,049.70 = 117,555.70/x
  3. Step 3: Cross multiply
    170,699.80x = 256,049.70 × 117,555.70
  4. Step 4: Simplify right side
    170,699.80x = 30,100,101,718.29
  5. Step 5: Solve for x
    x = 30,100,101,718.29/170,699.80
  6. Step 6: Final answer
    x = 176,333.55

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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.