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Finding the Fourth Proportional to 292,977.82, 439,508.82 and 90,589.68

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Solution

The fourth proportional to 292,977.82, 439,508.82 and 90,589.68 is: 135,897.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,977.82 : 439,508.82 = 90,589.68 : x
  2. Step 2: Convert to fraction form
    292,977.82/439,508.82 = 90,589.68/x
  3. Step 3: Cross multiply
    292,977.82x = 439,508.82 × 90,589.68
  4. Step 4: Simplify right side
    292,977.82x = 39,814,963,360.98
  5. Step 5: Solve for x
    x = 39,814,963,360.98/292,977.82
  6. Step 6: Final answer
    x = 135,897.53

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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.