Home / 255,330.20-383,456.10-185,288.60

Finding the Fourth Proportional to 255,330.20, 383,456.10 and 185,288.60

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Solution

The fourth proportional to 255,330.20, 383,456.10 and 185,288.60 is: 278,267.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,330.20 : 383,456.10 = 185,288.60 : x
  2. Step 2: Convert to fraction form
    255,330.20/383,456.10 = 185,288.60/x
  3. Step 3: Cross multiply
    255,330.20x = 383,456.10 × 185,288.60
  4. Step 4: Simplify right side
    255,330.20x = 71,050,043,930.46
  5. Step 5: Solve for x
    x = 71,050,043,930.46/255,330.20
  6. Step 6: Final answer
    x = 278,267.29

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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.