Home / 338,820.06-508,247.37-128,475.42

Finding the Fourth Proportional to 338,820.06, 508,247.37 and 128,475.42

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Solution

The fourth proportional to 338,820.06, 508,247.37 and 128,475.42 is: 192,719.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,820.06 : 508,247.37 = 128,475.42 : x
  2. Step 2: Convert to fraction form
    338,820.06/508,247.37 = 128,475.42/x
  3. Step 3: Cross multiply
    338,820.06x = 508,247.37 × 128,475.42
  4. Step 4: Simplify right side
    338,820.06x = 65,297,294,324.65
  5. Step 5: Solve for x
    x = 65,297,294,324.65/338,820.06
  6. Step 6: Final answer
    x = 192,719.68

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1.5x scale

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.