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Finding the Fourth Proportional to 252,646.85, 348,659.01 and 143,745.19

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Solution

The fourth proportional to 252,646.85, 348,659.01 and 143,745.19 is: 198,371.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,646.85 : 348,659.01 = 143,745.19 : x
  2. Step 2: Convert to fraction form
    252,646.85/348,659.01 = 143,745.19/x
  3. Step 3: Cross multiply
    252,646.85x = 348,659.01 × 143,745.19
  4. Step 4: Simplify right side
    252,646.85x = 50,118,054,766.01
  5. Step 5: Solve for x
    x = 50,118,054,766.01/252,646.85
  6. Step 6: Final answer
    x = 198,371.97

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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.