Home / 380,254.14-570,941.91-212,103

Finding the Fourth Proportional to 380,254.14, 570,941.91 and 212,103

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Solution

The fourth proportional to 380,254.14, 570,941.91 and 212,103 is: 318,467.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,254.14 : 570,941.91 = 212,103 : x
  2. Step 2: Convert to fraction form
    380,254.14/570,941.91 = 212,103/x
  3. Step 3: Cross multiply
    380,254.14x = 570,941.91 × 212,103
  4. Step 4: Simplify right side
    380,254.14x = 121,098,491,936.73
  5. Step 5: Solve for x
    x = 121,098,491,936.73/380,254.14
  6. Step 6: Final answer
    x = 318,467.25

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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.