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Finding the Fourth Proportional to 169,486.80, 254,230.20 and 156,656.40

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Solution

The fourth proportional to 169,486.80, 254,230.20 and 156,656.40 is: 234,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,486.80 : 254,230.20 = 156,656.40 : x
  2. Step 2: Convert to fraction form
    169,486.80/254,230.20 = 156,656.40/x
  3. Step 3: Cross multiply
    169,486.80x = 254,230.20 × 156,656.40
  4. Step 4: Simplify right side
    169,486.80x = 39,826,787,903.28
  5. Step 5: Solve for x
    x = 39,826,787,903.28/169,486.80
  6. Step 6: Final answer
    x = 234,984.60

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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.