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Finding the Fourth Proportional to 395,094.50, 545,171.75 and 239,965.06

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Solution

The fourth proportional to 395,094.50, 545,171.75 and 239,965.06 is: 331,116.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,094.50 : 545,171.75 = 239,965.06 : x
  2. Step 2: Convert to fraction form
    395,094.50/545,171.75 = 239,965.06/x
  3. Step 3: Cross multiply
    395,094.50x = 545,171.75 × 239,965.06
  4. Step 4: Simplify right side
    395,094.50x = 130,822,171,699.06
  5. Step 5: Solve for x
    x = 130,822,171,699.06/395,094.50
  6. Step 6: Final answer
    x = 331,116.15

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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.