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Finding the Fourth Proportional to 334,003.70, 501,005.55 and 81,282.19

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Solution

The fourth proportional to 334,003.70, 501,005.55 and 81,282.19 is: 121,923.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,003.70 : 501,005.55 = 81,282.19 : x
  2. Step 2: Convert to fraction form
    334,003.70/501,005.55 = 81,282.19/x
  3. Step 3: Cross multiply
    334,003.70x = 501,005.55 × 81,282.19
  4. Step 4: Simplify right side
    334,003.70x = 40,722,825,801.13
  5. Step 5: Solve for x
    x = 40,722,825,801.13/334,003.70
  6. Step 6: Final answer
    x = 121,923.28

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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.