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Finding the Fourth Proportional to 422,550.28, 583,119.90 and 228,957.84

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Solution

The fourth proportional to 422,550.28, 583,119.90 and 228,957.84 is: 315,962.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,550.28 : 583,119.90 = 228,957.84 : x
  2. Step 2: Convert to fraction form
    422,550.28/583,119.90 = 228,957.84/x
  3. Step 3: Cross multiply
    422,550.28x = 583,119.90 × 228,957.84
  4. Step 4: Simplify right side
    422,550.28x = 133,509,873,408.96
  5. Step 5: Solve for x
    x = 133,509,873,408.96/422,550.28
  6. Step 6: Final answer
    x = 315,962.10

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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.