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Finding the Fourth Proportional to 263,374.79, 395,112.01 and 83,505.51

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Solution

The fourth proportional to 263,374.79, 395,112.01 and 83,505.51 is: 125,274.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,374.79 : 395,112.01 = 83,505.51 : x
  2. Step 2: Convert to fraction form
    263,374.79/395,112.01 = 83,505.51/x
  3. Step 3: Cross multiply
    263,374.79x = 395,112.01 × 83,505.51
  4. Step 4: Simplify right side
    263,374.79x = 32,994,031,331.65
  5. Step 5: Solve for x
    x = 32,994,031,331.65/263,374.79
  6. Step 6: Final answer
    x = 125,274.07

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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.