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Finding the Fourth Proportional to 168,141.60, 252,212.40 and 155,311.20

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Solution

The fourth proportional to 168,141.60, 252,212.40 and 155,311.20 is: 232,966.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,141.60 : 252,212.40 = 155,311.20 : x
  2. Step 2: Convert to fraction form
    168,141.60/252,212.40 = 155,311.20/x
  3. Step 3: Cross multiply
    168,141.60x = 252,212.40 × 155,311.20
  4. Step 4: Simplify right side
    168,141.60x = 39,171,410,498.88
  5. Step 5: Solve for x
    x = 39,171,410,498.88/168,141.60
  6. Step 6: Final answer
    x = 232,966.80

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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.