Home / 386,723.96-533,559.42-225,464.88

Finding the Fourth Proportional to 386,723.96, 533,559.42 and 225,464.88

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Solution

The fourth proportional to 386,723.96, 533,559.42 and 225,464.88 is: 311,071.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,723.96 : 533,559.42 = 225,464.88 : x
  2. Step 2: Convert to fraction form
    386,723.96/533,559.42 = 225,464.88/x
  3. Step 3: Cross multiply
    386,723.96x = 533,559.42 × 225,464.88
  4. Step 4: Simplify right side
    386,723.96x = 120,298,910,603.17
  5. Step 5: Solve for x
    x = 120,298,910,603.17/386,723.96
  6. Step 6: Final answer
    x = 311,071.78

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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.