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Finding the Fourth Proportional to 330,530.77, 495,796.32 and 218,184.73

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Solution

The fourth proportional to 330,530.77, 495,796.32 and 218,184.73 is: 327,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,530.77 : 495,796.32 = 218,184.73 : x
  2. Step 2: Convert to fraction form
    330,530.77/495,796.32 = 218,184.73/x
  3. Step 3: Cross multiply
    330,530.77x = 495,796.32 × 218,184.73
  4. Step 4: Simplify right side
    330,530.77x = 108,175,186,214.19
  5. Step 5: Solve for x
    x = 108,175,186,214.19/330,530.77
  6. Step 6: Final answer
    x = 327,277.20

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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.