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Finding the Fourth Proportional to 274,291.35, 378,356.53 and 181,157.64

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Solution

The fourth proportional to 274,291.35, 378,356.53 and 181,157.64 is: 249,888.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,291.35 : 378,356.53 = 181,157.64 : x
  2. Step 2: Convert to fraction form
    274,291.35/378,356.53 = 181,157.64/x
  3. Step 3: Cross multiply
    274,291.35x = 378,356.53 × 181,157.64
  4. Step 4: Simplify right side
    274,291.35x = 68,542,176,053.39
  5. Step 5: Solve for x
    x = 68,542,176,053.39/274,291.35
  6. Step 6: Final answer
    x = 249,888.22

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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.