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Finding the Fourth Proportional to 227,280.40, 340,920.60 and 100,920.40

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Solution

The fourth proportional to 227,280.40, 340,920.60 and 100,920.40 is: 151,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,280.40 : 340,920.60 = 100,920.40 : x
  2. Step 2: Convert to fraction form
    227,280.40/340,920.60 = 100,920.40/x
  3. Step 3: Cross multiply
    227,280.40x = 340,920.60 × 100,920.40
  4. Step 4: Simplify right side
    227,280.40x = 34,405,843,320.24
  5. Step 5: Solve for x
    x = 34,405,843,320.24/227,280.40
  6. Step 6: Final answer
    x = 151,380.60

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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.