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Finding the Fourth Proportional to 239,251.47, 330,165.40 and 131,819.01

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Solution

The fourth proportional to 239,251.47, 330,165.40 and 131,819.01 is: 181,909.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,251.47 : 330,165.40 = 131,819.01 : x
  2. Step 2: Convert to fraction form
    239,251.47/330,165.40 = 131,819.01/x
  3. Step 3: Cross multiply
    239,251.47x = 330,165.40 × 131,819.01
  4. Step 4: Simplify right side
    239,251.47x = 43,522,076,164.25
  5. Step 5: Solve for x
    x = 43,522,076,164.25/239,251.47
  6. Step 6: Final answer
    x = 181,909.34

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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.