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Finding the Fourth Proportional to 185,504.83, 278,268.28 and 71,653.51

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Solution

The fourth proportional to 185,504.83, 278,268.28 and 71,653.51 is: 107,484.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,504.83 : 278,268.28 = 71,653.51 : x
  2. Step 2: Convert to fraction form
    185,504.83/278,268.28 = 71,653.51/x
  3. Step 3: Cross multiply
    185,504.83x = 278,268.28 × 71,653.51
  4. Step 4: Simplify right side
    185,504.83x = 19,938,898,983.66
  5. Step 5: Solve for x
    x = 19,938,898,983.66/185,504.83
  6. Step 6: Final answer
    x = 107,484.53

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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.