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Finding the Fourth Proportional to 155,662.40, 233,493.60 and 135,979.40

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Solution

The fourth proportional to 155,662.40, 233,493.60 and 135,979.40 is: 203,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,662.40 : 233,493.60 = 135,979.40 : x
  2. Step 2: Convert to fraction form
    155,662.40/233,493.60 = 135,979.40/x
  3. Step 3: Cross multiply
    155,662.40x = 233,493.60 × 135,979.40
  4. Step 4: Simplify right side
    155,662.40x = 31,750,319,631.84
  5. Step 5: Solve for x
    x = 31,750,319,631.84/155,662.40
  6. Step 6: Final answer
    x = 203,969.10

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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.