Home / 398,288.22-549,840.86-269,904.94

Finding the Fourth Proportional to 398,288.22, 549,840.86 and 269,904.94

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Solution

The fourth proportional to 398,288.22, 549,840.86 and 269,904.94 is: 372,606.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,288.22 : 549,840.86 = 269,904.94 : x
  2. Step 2: Convert to fraction form
    398,288.22/549,840.86 = 269,904.94/x
  3. Step 3: Cross multiply
    398,288.22x = 549,840.86 × 269,904.94
  4. Step 4: Simplify right side
    398,288.22x = 148,404,764,327.85
  5. Step 5: Solve for x
    x = 148,404,764,327.85/398,288.22
  6. Step 6: Final answer
    x = 372,606.46

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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.