Home / 338,255.06-507,406.26-135,851.18

Finding the Fourth Proportional to 338,255.06, 507,406.26 and 135,851.18

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Solution

The fourth proportional to 338,255.06, 507,406.26 and 135,851.18 is: 203,786.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,255.06 : 507,406.26 = 135,851.18 : x
  2. Step 2: Convert to fraction form
    338,255.06/507,406.26 = 135,851.18/x
  3. Step 3: Cross multiply
    338,255.06x = 507,406.26 × 135,851.18
  4. Step 4: Simplify right side
    338,255.06x = 68,931,739,160.39
  5. Step 5: Solve for x
    x = 68,931,739,160.39/338,255.06
  6. Step 6: Final answer
    x = 203,786.28

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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.