Home / 227,415.90-339,439.52-213,407.58

Finding the Fourth Proportional to 227,415.90, 339,439.52 and 213,407.58

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Solution

The fourth proportional to 227,415.90, 339,439.52 and 213,407.58 is: 318,530.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,415.90 : 339,439.52 = 213,407.58 : x
  2. Step 2: Convert to fraction form
    227,415.90/339,439.52 = 213,407.58/x
  3. Step 3: Cross multiply
    227,415.90x = 339,439.52 × 213,407.58
  4. Step 4: Simplify right side
    227,415.90x = 72,438,965,452.52
  5. Step 5: Solve for x
    x = 72,438,965,452.52/227,415.90
  6. Step 6: Final answer
    x = 318,530.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.