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Finding the Fourth Proportional to 576,102.40, 863,894.40 and 220,998.40

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Solution

The fourth proportional to 576,102.40, 863,894.40 and 220,998.40 is: 331,398.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,102.40 : 863,894.40 = 220,998.40 : x
  2. Step 2: Convert to fraction form
    576,102.40/863,894.40 = 220,998.40/x
  3. Step 3: Cross multiply
    576,102.40x = 863,894.40 × 220,998.40
  4. Step 4: Simplify right side
    576,102.40x = 190,919,280,168.96
  5. Step 5: Solve for x
    x = 190,919,280,168.96/576,102.40
  6. Step 6: Final answer
    x = 331,398.17

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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.