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Finding the Fourth Proportional to 384,772.62, 530,976.03 and 215,008.14

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Solution

The fourth proportional to 384,772.62, 530,976.03 and 215,008.14 is: 296,705.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,772.62 : 530,976.03 = 215,008.14 : x
  2. Step 2: Convert to fraction form
    384,772.62/530,976.03 = 215,008.14/x
  3. Step 3: Cross multiply
    384,772.62x = 530,976.03 × 215,008.14
  4. Step 4: Simplify right side
    384,772.62x = 114,164,168,594.88
  5. Step 5: Solve for x
    x = 114,164,168,594.88/384,772.62
  6. Step 6: Final answer
    x = 296,705.54

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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.