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Finding the Fourth Proportional to 252,767.58, 378,929.22 and 103,133.85

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Solution

The fourth proportional to 252,767.58, 378,929.22 and 103,133.85 is: 154,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,767.58 : 378,929.22 = 103,133.85 : x
  2. Step 2: Convert to fraction form
    252,767.58/378,929.22 = 103,133.85/x
  3. Step 3: Cross multiply
    252,767.58x = 378,929.22 × 103,133.85
  4. Step 4: Simplify right side
    252,767.58x = 39,080,429,336.10
  5. Step 5: Solve for x
    x = 39,080,429,336.10/252,767.58
  6. Step 6: Final answer
    x = 154,610.13

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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.