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Finding the Fourth Proportional to 298,437.69, 447,612.39 and 108,853.68

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Solution

The fourth proportional to 298,437.69, 447,612.39 and 108,853.68 is: 163,264.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,437.69 : 447,612.39 = 108,853.68 : x
  2. Step 2: Convert to fraction form
    298,437.69/447,612.39 = 108,853.68/x
  3. Step 3: Cross multiply
    298,437.69x = 447,612.39 × 108,853.68
  4. Step 4: Simplify right side
    298,437.69x = 48,724,255,865.10
  5. Step 5: Solve for x
    x = 48,724,255,865.10/298,437.69
  6. Step 6: Final answer
    x = 163,264.42

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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.