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Finding the Fourth Proportional to 239,967.36, 330,966 and 223,871.04

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Solution

The fourth proportional to 239,967.36, 330,966 and 223,871.04 is: 308,765.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,967.36 : 330,966 = 223,871.04 : x
  2. Step 2: Convert to fraction form
    239,967.36/330,966 = 223,871.04/x
  3. Step 3: Cross multiply
    239,967.36x = 330,966 × 223,871.04
  4. Step 4: Simplify right side
    239,967.36x = 74,093,702,624.64
  5. Step 5: Solve for x
    x = 74,093,702,624.64/239,967.36
  6. Step 6: Final answer
    x = 308,765.75

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1.5x scale

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.