Home / 380,261.11-570,952.38-212,109.97

Finding the Fourth Proportional to 380,261.11, 570,952.38 and 212,109.97

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Solution

The fourth proportional to 380,261.11, 570,952.38 and 212,109.97 is: 318,477.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,261.11 : 570,952.38 = 212,109.97 : x
  2. Step 2: Convert to fraction form
    380,261.11/570,952.38 = 212,109.97/x
  3. Step 3: Cross multiply
    380,261.11x = 570,952.38 × 212,109.97
  4. Step 4: Simplify right side
    380,261.11x = 121,104,691,836.38
  5. Step 5: Solve for x
    x = 121,104,691,836.38/380,261.11
  6. Step 6: Final answer
    x = 318,477.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.