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Finding the Fourth Proportional to 366,455.60, 548,614.20 and 261,479.60

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Solution

The fourth proportional to 366,455.60, 548,614.20 and 261,479.60 is: 391,456.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,455.60 : 548,614.20 = 261,479.60 : x
  2. Step 2: Convert to fraction form
    366,455.60/548,614.20 = 261,479.60/x
  3. Step 3: Cross multiply
    366,455.60x = 548,614.20 × 261,479.60
  4. Step 4: Simplify right side
    366,455.60x = 143,451,421,570.32
  5. Step 5: Solve for x
    x = 143,451,421,570.32/366,455.60
  6. Step 6: Final answer
    x = 391,456.49

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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.