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Finding the Fourth Proportional to 238,685.64, 358,028.44 and 113,647.56

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Solution

The fourth proportional to 238,685.64, 358,028.44 and 113,647.56 is: 170,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,685.64 : 358,028.44 = 113,647.56 : x
  2. Step 2: Convert to fraction form
    238,685.64/358,028.44 = 113,647.56/x
  3. Step 3: Cross multiply
    238,685.64x = 358,028.44 × 113,647.56
  4. Step 4: Simplify right side
    238,685.64x = 40,689,058,616.61
  5. Step 5: Solve for x
    x = 40,689,058,616.61/238,685.64
  6. Step 6: Final answer
    x = 170,471.33

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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.