Home / 255,328.20-383,453.10-185,286.60

Finding the Fourth Proportional to 255,328.20, 383,453.10 and 185,286.60

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Solution

The fourth proportional to 255,328.20, 383,453.10 and 185,286.60 is: 278,264.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,328.20 : 383,453.10 = 185,286.60 : x
  2. Step 2: Convert to fraction form
    255,328.20/383,453.10 = 185,286.60/x
  3. Step 3: Cross multiply
    255,328.20x = 383,453.10 × 185,286.60
  4. Step 4: Simplify right side
    255,328.20x = 71,048,721,158.46
  5. Step 5: Solve for x
    x = 71,048,721,158.46/255,328.20
  6. Step 6: Final answer
    x = 278,264.29

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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.