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Finding the Fourth Proportional to 155,662.10, 233,493.15 and 135,979.10

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Solution

The fourth proportional to 155,662.10, 233,493.15 and 135,979.10 is: 203,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,662.10 : 233,493.15 = 135,979.10 : x
  2. Step 2: Convert to fraction form
    155,662.10/233,493.15 = 135,979.10/x
  3. Step 3: Cross multiply
    155,662.10x = 233,493.15 × 135,979.10
  4. Step 4: Simplify right side
    155,662.10x = 31,750,188,393.17
  5. Step 5: Solve for x
    x = 31,750,188,393.17/155,662.10
  6. Step 6: Final answer
    x = 203,968.65

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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.