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Finding the Fourth Proportional to 361,353.98, 541,820.87 and 136,731.77

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Solution

The fourth proportional to 361,353.98, 541,820.87 and 136,731.77 is: 205,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,353.98 : 541,820.87 = 136,731.77 : x
  2. Step 2: Convert to fraction form
    361,353.98/541,820.87 = 136,731.77/x
  3. Step 3: Cross multiply
    361,353.98x = 541,820.87 × 136,731.77
  4. Step 4: Simplify right side
    361,353.98x = 74,084,126,578.04
  5. Step 5: Solve for x
    x = 74,084,126,578.04/361,353.98
  6. Step 6: Final answer
    x = 205,018.16

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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.