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Finding the Fourth Proportional to 322,818.82, 484,224.30 and 145,200.40

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Solution

The fourth proportional to 322,818.82, 484,224.30 and 145,200.40 is: 217,798.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,818.82 : 484,224.30 = 145,200.40 : x
  2. Step 2: Convert to fraction form
    322,818.82/484,224.30 = 145,200.40/x
  3. Step 3: Cross multiply
    322,818.82x = 484,224.30 × 145,200.40
  4. Step 4: Simplify right side
    322,818.82x = 70,309,562,049.72
  5. Step 5: Solve for x
    x = 70,309,562,049.72/322,818.82
  6. Step 6: Final answer
    x = 217,798.83

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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.