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Finding the Fourth Proportional to 255,959.30, 383,939.12 and 106,159.37

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Solution

The fourth proportional to 255,959.30, 383,939.12 and 106,159.37 is: 159,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,959.30 : 383,939.12 = 106,159.37 : x
  2. Step 2: Convert to fraction form
    255,959.30/383,939.12 = 106,159.37/x
  3. Step 3: Cross multiply
    255,959.30x = 383,939.12 × 106,159.37
  4. Step 4: Simplify right side
    255,959.30x = 40,758,735,097.55
  5. Step 5: Solve for x
    x = 40,758,735,097.55/255,959.30
  6. Step 6: Final answer
    x = 159,239.13

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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.