Home / 398,050.20-549,296.24-216,760.73

Finding the Fourth Proportional to 398,050.20, 549,296.24 and 216,760.73

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Solution

The fourth proportional to 398,050.20, 549,296.24 and 216,760.73 is: 299,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,050.20 : 549,296.24 = 216,760.73 : x
  2. Step 2: Convert to fraction form
    398,050.20/549,296.24 = 216,760.73/x
  3. Step 3: Cross multiply
    398,050.20x = 549,296.24 × 216,760.73
  4. Step 4: Simplify right side
    398,050.20x = 119,065,850,138.37
  5. Step 5: Solve for x
    x = 119,065,850,138.37/398,050.20
  6. Step 6: Final answer
    x = 299,122.70

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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.