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Finding the Fourth Proportional to 298,326.44, 447,489.66 and 245,625.21

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Solution

The fourth proportional to 298,326.44, 447,489.66 and 245,625.21 is: 368,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,326.44 : 447,489.66 = 245,625.21 : x
  2. Step 2: Convert to fraction form
    298,326.44/447,489.66 = 245,625.21/x
  3. Step 3: Cross multiply
    298,326.44x = 447,489.66 × 245,625.21
  4. Step 4: Simplify right side
    298,326.44x = 109,914,742,631.42
  5. Step 5: Solve for x
    x = 109,914,742,631.42/298,326.44
  6. Step 6: Final answer
    x = 368,437.82

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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.