Home / 255,890.63-383,819.79-99,932.06

Finding the Fourth Proportional to 255,890.63, 383,819.79 and 99,932.06

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Solution

The fourth proportional to 255,890.63, 383,819.79 and 99,932.06 is: 149,891.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,890.63 : 383,819.79 = 99,932.06 : x
  2. Step 2: Convert to fraction form
    255,890.63/383,819.79 = 99,932.06/x
  3. Step 3: Cross multiply
    255,890.63x = 383,819.79 × 99,932.06
  4. Step 4: Simplify right side
    255,890.63x = 38,355,900,364.37
  5. Step 5: Solve for x
    x = 38,355,900,364.37/255,890.63
  6. Step 6: Final answer
    x = 149,891.78

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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.