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Finding the Fourth Proportional to 483,953.10, 726,188.85 and 203,498.70

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Solution

The fourth proportional to 483,953.10, 726,188.85 and 203,498.70 is: 305,357.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,953.10 : 726,188.85 = 203,498.70 : x
  2. Step 2: Convert to fraction form
    483,953.10/726,188.85 = 203,498.70/x
  3. Step 3: Cross multiply
    483,953.10x = 726,188.85 × 203,498.70
  4. Step 4: Simplify right side
    483,953.10x = 147,778,486,929.50
  5. Step 5: Solve for x
    x = 147,778,486,929.50/483,953.10
  6. Step 6: Final answer
    x = 305,357.04

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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.