Home / 380,255.14-570,943.41-212,104

Finding the Fourth Proportional to 380,255.14, 570,943.41 and 212,104

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Solution

The fourth proportional to 380,255.14, 570,943.41 and 212,104 is: 318,468.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,255.14 : 570,943.41 = 212,104 : x
  2. Step 2: Convert to fraction form
    380,255.14/570,943.41 = 212,104/x
  3. Step 3: Cross multiply
    380,255.14x = 570,943.41 × 212,104
  4. Step 4: Simplify right side
    380,255.14x = 121,099,381,034.64
  5. Step 5: Solve for x
    x = 121,099,381,034.64/380,255.14
  6. Step 6: Final answer
    x = 318,468.76

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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.