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Finding the Fourth Proportional to 270,187.20, 405,280.80 and 248,414.40

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Solution

The fourth proportional to 270,187.20, 405,280.80 and 248,414.40 is: 372,621.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,187.20 : 405,280.80 = 248,414.40 : x
  2. Step 2: Convert to fraction form
    270,187.20/405,280.80 = 248,414.40/x
  3. Step 3: Cross multiply
    270,187.20x = 405,280.80 × 248,414.40
  4. Step 4: Simplify right side
    270,187.20x = 100,677,586,763.52
  5. Step 5: Solve for x
    x = 100,677,586,763.52/270,187.20
  6. Step 6: Final answer
    x = 372,621.60

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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.