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Finding the Fourth Proportional to 239,398.42, 330,366.25 and 131,966.15

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Solution

The fourth proportional to 239,398.42, 330,366.25 and 131,966.15 is: 182,111.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,398.42 : 330,366.25 = 131,966.15 : x
  2. Step 2: Convert to fraction form
    239,398.42/330,366.25 = 131,966.15/x
  3. Step 3: Cross multiply
    239,398.42x = 330,366.25 × 131,966.15
  4. Step 4: Simplify right side
    239,398.42x = 43,597,159,873.25
  5. Step 5: Solve for x
    x = 43,597,159,873.25/239,398.42
  6. Step 6: Final answer
    x = 182,111.31

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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.