Home / 380,935.20-571,408.44-144,214.32

Finding the Fourth Proportional to 380,935.20, 571,408.44 and 144,214.32

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Solution

The fourth proportional to 380,935.20, 571,408.44 and 144,214.32 is: 216,323.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,935.20 : 571,408.44 = 144,214.32 : x
  2. Step 2: Convert to fraction form
    380,935.20/571,408.44 = 144,214.32/x
  3. Step 3: Cross multiply
    380,935.20x = 571,408.44 × 144,214.32
  4. Step 4: Simplify right side
    380,935.20x = 82,405,279,616.86
  5. Step 5: Solve for x
    x = 82,405,279,616.86/380,935.20
  6. Step 6: Final answer
    x = 216,323.62

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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.