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Finding the Fourth Proportional to 288,982.80, 433,474.20 and 239,216.40

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Solution

The fourth proportional to 288,982.80, 433,474.20 and 239,216.40 is: 358,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,982.80 : 433,474.20 = 239,216.40 : x
  2. Step 2: Convert to fraction form
    288,982.80/433,474.20 = 239,216.40/x
  3. Step 3: Cross multiply
    288,982.80x = 433,474.20 × 239,216.40
  4. Step 4: Simplify right side
    288,982.80x = 103,694,137,616.88
  5. Step 5: Solve for x
    x = 103,694,137,616.88/288,982.80
  6. Step 6: Final answer
    x = 358,824.60

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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.