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Finding the Fourth Proportional to 322,811.60, 484,217.40 and 308,296.40

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Solution

The fourth proportional to 322,811.60, 484,217.40 and 308,296.40 is: 462,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,811.60 : 484,217.40 = 308,296.40 : x
  2. Step 2: Convert to fraction form
    322,811.60/484,217.40 = 308,296.40/x
  3. Step 3: Cross multiply
    322,811.60x = 484,217.40 × 308,296.40
  4. Step 4: Simplify right side
    322,811.60x = 149,282,481,237.36
  5. Step 5: Solve for x
    x = 149,282,481,237.36/322,811.60
  6. Step 6: Final answer
    x = 462,444.60

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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.