Home / 353,236.50-487,479.20-202,362.66

Finding the Fourth Proportional to 353,236.50, 487,479.20 and 202,362.66

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Solution

The fourth proportional to 353,236.50, 487,479.20 and 202,362.66 is: 279,267.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,236.50 : 487,479.20 = 202,362.66 : x
  2. Step 2: Convert to fraction form
    353,236.50/487,479.20 = 202,362.66/x
  3. Step 3: Cross multiply
    353,236.50x = 487,479.20 × 202,362.66
  4. Step 4: Simplify right side
    353,236.50x = 98,647,586,594.86
  5. Step 5: Solve for x
    x = 98,647,586,594.86/353,236.50
  6. Step 6: Final answer
    x = 279,267.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.