Home / 239,400.49-330,369.10-131,968.21

Finding the Fourth Proportional to 239,400.49, 330,369.10 and 131,968.21

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Solution

The fourth proportional to 239,400.49, 330,369.10 and 131,968.21 is: 182,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,400.49 : 330,369.10 = 131,968.21 : x
  2. Step 2: Convert to fraction form
    239,400.49/330,369.10 = 131,968.21/x
  3. Step 3: Cross multiply
    239,400.49x = 330,369.10 × 131,968.21
  4. Step 4: Simplify right side
    239,400.49x = 43,598,218,766.31
  5. Step 5: Solve for x
    x = 43,598,218,766.31/239,400.49
  6. Step 6: Final answer
    x = 182,114.16

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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.