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Finding the Fourth Proportional to 322,975.20, 484,462.80 and 252,914.40

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Solution

The fourth proportional to 322,975.20, 484,462.80 and 252,914.40 is: 379,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,975.20 : 484,462.80 = 252,914.40 : x
  2. Step 2: Convert to fraction form
    322,975.20/484,462.80 = 252,914.40/x
  3. Step 3: Cross multiply
    322,975.20x = 484,462.80 × 252,914.40
  4. Step 4: Simplify right side
    322,975.20x = 122,527,618,384.32
  5. Step 5: Solve for x
    x = 122,527,618,384.32/322,975.20
  6. Step 6: Final answer
    x = 379,371.60

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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.