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Finding the Fourth Proportional to 288,265.32, 397,812.60 and 180,839.88

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Solution

The fourth proportional to 288,265.32, 397,812.60 and 180,839.88 is: 249,563.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,265.32 : 397,812.60 = 180,839.88 : x
  2. Step 2: Convert to fraction form
    288,265.32/397,812.60 = 180,839.88/x
  3. Step 3: Cross multiply
    288,265.32x = 397,812.60 × 180,839.88
  4. Step 4: Simplify right side
    288,265.32x = 71,940,382,846.49
  5. Step 5: Solve for x
    x = 71,940,382,846.49/288,265.32
  6. Step 6: Final answer
    x = 249,563.09

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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.