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Finding the Fourth Proportional to 239,315.16, 330,257.16 and 131,889.12

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Solution

The fourth proportional to 239,315.16, 330,257.16 and 131,889.12 is: 182,008.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,315.16 : 330,257.16 = 131,889.12 : x
  2. Step 2: Convert to fraction form
    239,315.16/330,257.16 = 131,889.12/x
  3. Step 3: Cross multiply
    239,315.16x = 330,257.16 × 131,889.12
  4. Step 4: Simplify right side
    239,315.16x = 43,557,326,206.10
  5. Step 5: Solve for x
    x = 43,557,326,206.10/239,315.16
  6. Step 6: Final answer
    x = 182,008.22

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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.