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Finding the Fourth Proportional to 321,889.38, 444,005.25 and 207,316.50

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Solution

The fourth proportional to 321,889.38, 444,005.25 and 207,316.50 is: 285,966.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,889.38 : 444,005.25 = 207,316.50 : x
  2. Step 2: Convert to fraction form
    321,889.38/444,005.25 = 207,316.50/x
  3. Step 3: Cross multiply
    321,889.38x = 444,005.25 × 207,316.50
  4. Step 4: Simplify right side
    321,889.38x = 92,049,614,411.63
  5. Step 5: Solve for x
    x = 92,049,614,411.63/321,889.38
  6. Step 6: Final answer
    x = 285,966.61

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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.