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Finding the Fourth Proportional to 322,808.83, 484,209.29 and 145,190.41

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Solution

The fourth proportional to 322,808.83, 484,209.29 and 145,190.41 is: 217,783.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,808.83 : 484,209.29 = 145,190.41 : x
  2. Step 2: Convert to fraction form
    322,808.83/484,209.29 = 145,190.41/x
  3. Step 3: Cross multiply
    322,808.83x = 484,209.29 × 145,190.41
  4. Step 4: Simplify right side
    322,808.83x = 70,302,544,493.36
  5. Step 5: Solve for x
    x = 70,302,544,493.36/322,808.83
  6. Step 6: Final answer
    x = 217,783.84

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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.