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Finding the Fourth Proportional to 422,277.84, 582,754.78 and 238,501.68

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Solution

The fourth proportional to 422,277.84, 582,754.78 and 238,501.68 is: 329,138.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,277.84 : 582,754.78 = 238,501.68 : x
  2. Step 2: Convert to fraction form
    422,277.84/582,754.78 = 238,501.68/x
  3. Step 3: Cross multiply
    422,277.84x = 582,754.78 × 238,501.68
  4. Step 4: Simplify right side
    422,277.84x = 138,987,994,058.03
  5. Step 5: Solve for x
    x = 138,987,994,058.03/422,277.84
  6. Step 6: Final answer
    x = 329,138.73

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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.