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Finding the Fourth Proportional to 170,956.40, 256,434.60 and 161,114.90

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Solution

The fourth proportional to 170,956.40, 256,434.60 and 161,114.90 is: 241,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,956.40 : 256,434.60 = 161,114.90 : x
  2. Step 2: Convert to fraction form
    170,956.40/256,434.60 = 161,114.90/x
  3. Step 3: Cross multiply
    170,956.40x = 256,434.60 × 161,114.90
  4. Step 4: Simplify right side
    170,956.40x = 41,315,434,935.54
  5. Step 5: Solve for x
    x = 41,315,434,935.54/170,956.40
  6. Step 6: Final answer
    x = 241,672.35

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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.