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Finding the Fourth Proportional to 239,830, 330,970.68 and 132,399.76

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Solution

The fourth proportional to 239,830, 330,970.68 and 132,399.76 is: 182,714.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,830 : 330,970.68 = 132,399.76 : x
  2. Step 2: Convert to fraction form
    239,830/330,970.68 = 132,399.76/x
  3. Step 3: Cross multiply
    239,830x = 330,970.68 × 132,399.76
  4. Step 4: Simplify right side
    239,830x = 43,820,438,599.04
  5. Step 5: Solve for x
    x = 43,820,438,599.04/239,830
  6. Step 6: Final answer
    x = 182,714.58

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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.