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Finding the Fourth Proportional to 381,785.76, 526,780.80 and 230,879.52

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Solution

The fourth proportional to 381,785.76, 526,780.80 and 230,879.52 is: 318,563.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,785.76 : 526,780.80 = 230,879.52 : x
  2. Step 2: Convert to fraction form
    381,785.76/526,780.80 = 230,879.52/x
  3. Step 3: Cross multiply
    381,785.76x = 526,780.80 × 230,879.52
  4. Step 4: Simplify right side
    381,785.76x = 121,622,898,249.22
  5. Step 5: Solve for x
    x = 121,622,898,249.22/381,785.76
  6. Step 6: Final answer
    x = 318,563.21

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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.