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Finding the Fourth Proportional to 170,690.40, 256,035.60 and 161,013.60

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Solution

The fourth proportional to 170,690.40, 256,035.60 and 161,013.60 is: 241,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,690.40 : 256,035.60 = 161,013.60 : x
  2. Step 2: Convert to fraction form
    170,690.40/256,035.60 = 161,013.60/x
  3. Step 3: Cross multiply
    170,690.40x = 256,035.60 × 161,013.60
  4. Step 4: Simplify right side
    170,690.40x = 41,225,213,684.16
  5. Step 5: Solve for x
    x = 41,225,213,684.16/170,690.40
  6. Step 6: Final answer
    x = 241,520.40

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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.