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Finding the Fourth Proportional to 169,959.78, 254,905.11 and 161,529.30

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Solution

The fourth proportional to 169,959.78, 254,905.11 and 161,529.30 is: 242,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,959.78 : 254,905.11 = 161,529.30 : x
  2. Step 2: Convert to fraction form
    169,959.78/254,905.11 = 161,529.30/x
  3. Step 3: Cross multiply
    169,959.78x = 254,905.11 × 161,529.30
  4. Step 4: Simplify right side
    169,959.78x = 41,174,643,984.72
  5. Step 5: Solve for x
    x = 41,174,643,984.72/169,959.78
  6. Step 6: Final answer
    x = 242,261.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.