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Finding the Fourth Proportional to 292,734.78, 439,249.77 and 115,368.90

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Solution

The fourth proportional to 292,734.78, 439,249.77 and 115,368.90 is: 173,111.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,734.78 : 439,249.77 = 115,368.90 : x
  2. Step 2: Convert to fraction form
    292,734.78/439,249.77 = 115,368.90/x
  3. Step 3: Cross multiply
    292,734.78x = 439,249.77 × 115,368.90
  4. Step 4: Simplify right side
    292,734.78x = 50,675,762,790.15
  5. Step 5: Solve for x
    x = 50,675,762,790.15/292,734.78
  6. Step 6: Final answer
    x = 173,111.52

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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.