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Finding the Fourth Proportional to 170,039.20, 255,058.80 and 161,485.60

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Solution

The fourth proportional to 170,039.20, 255,058.80 and 161,485.60 is: 242,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,039.20 : 255,058.80 = 161,485.60 : x
  2. Step 2: Convert to fraction form
    170,039.20/255,058.80 = 161,485.60/x
  3. Step 3: Cross multiply
    170,039.20x = 255,058.80 × 161,485.60
  4. Step 4: Simplify right side
    170,039.20x = 41,188,323,353.28
  5. Step 5: Solve for x
    x = 41,188,323,353.28/170,039.20
  6. Step 6: Final answer
    x = 242,228.40

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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.