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Finding the Fourth Proportional to 239,403.68, 330,372.96 and 131,983.68

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Solution

The fourth proportional to 239,403.68, 330,372.96 and 131,983.68 is: 182,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,403.68 : 330,372.96 = 131,983.68 : x
  2. Step 2: Convert to fraction form
    239,403.68/330,372.96 = 131,983.68/x
  3. Step 3: Cross multiply
    239,403.68x = 330,372.96 × 131,983.68
  4. Step 4: Simplify right side
    239,403.68x = 43,603,839,033.29
  5. Step 5: Solve for x
    x = 43,603,839,033.29/239,403.68
  6. Step 6: Final answer
    x = 182,135.21

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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.