Home / 237,879.90-328,278.78-130,443.54

Finding the Fourth Proportional to 237,879.90, 328,278.78 and 130,443.54

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Solution

The fourth proportional to 237,879.90, 328,278.78 and 130,443.54 is: 180,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,879.90 : 328,278.78 = 130,443.54 : x
  2. Step 2: Convert to fraction form
    237,879.90/328,278.78 = 130,443.54/x
  3. Step 3: Cross multiply
    237,879.90x = 328,278.78 × 130,443.54
  4. Step 4: Simplify right side
    237,879.90x = 42,821,846,170.08
  5. Step 5: Solve for x
    x = 42,821,846,170.08/237,879.90
  6. Step 6: Final answer
    x = 180,014.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.