Home / 301,582.61-451,684.71-143,921.78

Finding the Fourth Proportional to 301,582.61, 451,684.71 and 143,921.78

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Solution

The fourth proportional to 301,582.61, 451,684.71 and 143,921.78 is: 215,553.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,582.61 : 451,684.71 = 143,921.78 : x
  2. Step 2: Convert to fraction form
    301,582.61/451,684.71 = 143,921.78/x
  3. Step 3: Cross multiply
    301,582.61x = 451,684.71 × 143,921.78
  4. Step 4: Simplify right side
    301,582.61x = 65,007,268,591.20
  5. Step 5: Solve for x
    x = 65,007,268,591.20/301,582.61
  6. Step 6: Final answer
    x = 215,553.77

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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.