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Finding the Fourth Proportional to 228,793.33, 315,628 and 143,957.17

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Solution

The fourth proportional to 228,793.33, 315,628 and 143,957.17 is: 198,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,793.33 : 315,628 = 143,957.17 : x
  2. Step 2: Convert to fraction form
    228,793.33/315,628 = 143,957.17/x
  3. Step 3: Cross multiply
    228,793.33x = 315,628 × 143,957.17
  4. Step 4: Simplify right side
    228,793.33x = 45,436,913,652.76
  5. Step 5: Solve for x
    x = 45,436,913,652.76/228,793.33
  6. Step 6: Final answer
    x = 198,593.70

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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.