Home / 255,328.41-383,331.87-218,127.54

Finding the Fourth Proportional to 255,328.41, 383,331.87 and 218,127.54

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Solution

The fourth proportional to 255,328.41, 383,331.87 and 218,127.54 is: 327,481.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,328.41 : 383,331.87 = 218,127.54 : x
  2. Step 2: Convert to fraction form
    255,328.41/383,331.87 = 218,127.54/x
  3. Step 3: Cross multiply
    255,328.41x = 383,331.87 × 218,127.54
  4. Step 4: Simplify right side
    255,328.41x = 83,615,237,806.70
  5. Step 5: Solve for x
    x = 83,615,237,806.70/255,328.41
  6. Step 6: Final answer
    x = 327,481.14

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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.