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Finding the Fourth Proportional to 170,602.70, 256,114.65 and 107,422.70

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Solution

The fourth proportional to 170,602.70, 256,114.65 and 107,422.70 is: 161,266.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,602.70 : 256,114.65 = 107,422.70 : x
  2. Step 2: Convert to fraction form
    170,602.70/256,114.65 = 107,422.70/x
  3. Step 3: Cross multiply
    170,602.70x = 256,114.65 × 107,422.70
  4. Step 4: Simplify right side
    170,602.70x = 27,512,527,212.56
  5. Step 5: Solve for x
    x = 27,512,527,212.56/170,602.70
  6. Step 6: Final answer
    x = 161,266.66

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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.