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Finding the Fourth Proportional to 324,300.38, 447,405.66 and 216,699.98

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Solution

The fourth proportional to 324,300.38, 447,405.66 and 216,699.98 is: 298,959.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,300.38 : 447,405.66 = 216,699.98 : x
  2. Step 2: Convert to fraction form
    324,300.38/447,405.66 = 216,699.98/x
  3. Step 3: Cross multiply
    324,300.38x = 447,405.66 × 216,699.98
  4. Step 4: Simplify right side
    324,300.38x = 96,952,795,336.86
  5. Step 5: Solve for x
    x = 96,952,795,336.86/324,300.38
  6. Step 6: Final answer
    x = 298,959.86

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1.5x scale

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.