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Finding the Fourth Proportional to 239,781.54, 330,896.93 and 130,885.46

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Solution

The fourth proportional to 239,781.54, 330,896.93 and 130,885.46 is: 180,621.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,781.54 : 330,896.93 = 130,885.46 : x
  2. Step 2: Convert to fraction form
    239,781.54/330,896.93 = 130,885.46/x
  3. Step 3: Cross multiply
    239,781.54x = 330,896.93 × 130,885.46
  4. Step 4: Simplify right side
    239,781.54x = 43,309,596,895.64
  5. Step 5: Solve for x
    x = 43,309,596,895.64/239,781.54
  6. Step 6: Final answer
    x = 180,621.06

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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.