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Finding the Fourth Proportional to 270,166.02, 405,218.79 and 103,837.38

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Solution

The fourth proportional to 270,166.02, 405,218.79 and 103,837.38 is: 155,744.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,166.02 : 405,218.79 = 103,837.38 : x
  2. Step 2: Convert to fraction form
    270,166.02/405,218.79 = 103,837.38/x
  3. Step 3: Cross multiply
    270,166.02x = 405,218.79 × 103,837.38
  4. Step 4: Simplify right side
    270,166.02x = 42,076,857,480.37
  5. Step 5: Solve for x
    x = 42,076,857,480.37/270,166.02
  6. Step 6: Final answer
    x = 155,744.45

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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.