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Finding the Fourth Proportional to 169,969.40, 254,954.10 and 140,420.60

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Solution

The fourth proportional to 169,969.40, 254,954.10 and 140,420.60 is: 210,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,969.40 : 254,954.10 = 140,420.60 : x
  2. Step 2: Convert to fraction form
    169,969.40/254,954.10 = 140,420.60/x
  3. Step 3: Cross multiply
    169,969.40x = 254,954.10 × 140,420.60
  4. Step 4: Simplify right side
    169,969.40x = 35,800,807,694.46
  5. Step 5: Solve for x
    x = 35,800,807,694.46/169,969.40
  6. Step 6: Final answer
    x = 210,630.90

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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.