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Finding the Fourth Proportional to 239,257.20, 358,885.80 and 206,014.80

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Solution

The fourth proportional to 239,257.20, 358,885.80 and 206,014.80 is: 309,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,257.20 : 358,885.80 = 206,014.80 : x
  2. Step 2: Convert to fraction form
    239,257.20/358,885.80 = 206,014.80/x
  3. Step 3: Cross multiply
    239,257.20x = 358,885.80 × 206,014.80
  4. Step 4: Simplify right side
    239,257.20x = 73,935,786,309.84
  5. Step 5: Solve for x
    x = 73,935,786,309.84/239,257.20
  6. Step 6: Final answer
    x = 309,022.20

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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.