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Finding the Fourth Proportional to 360,872.36, 540,230.06 and 218,286.13

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Solution

The fourth proportional to 360,872.36, 540,230.06 and 218,286.13 is: 326,776.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,872.36 : 540,230.06 = 218,286.13 : x
  2. Step 2: Convert to fraction form
    360,872.36/540,230.06 = 218,286.13/x
  3. Step 3: Cross multiply
    360,872.36x = 540,230.06 × 218,286.13
  4. Step 4: Simplify right side
    360,872.36x = 117,924,728,302.21
  5. Step 5: Solve for x
    x = 117,924,728,302.21/360,872.36
  6. Step 6: Final answer
    x = 326,776.83

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1.5x scale

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.