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Finding the Fourth Proportional to 170,812.40, 256,218.60 and 161,135.60

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Solution

The fourth proportional to 170,812.40, 256,218.60 and 161,135.60 is: 241,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,812.40 : 256,218.60 = 161,135.60 : x
  2. Step 2: Convert to fraction form
    170,812.40/256,218.60 = 161,135.60/x
  3. Step 3: Cross multiply
    170,812.40x = 256,218.60 × 161,135.60
  4. Step 4: Simplify right side
    170,812.40x = 41,285,937,842.16
  5. Step 5: Solve for x
    x = 41,285,937,842.16/170,812.40
  6. Step 6: Final answer
    x = 241,703.40

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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.