Home / 381,867.36-572,874.79-145,191.64

Finding the Fourth Proportional to 381,867.36, 572,874.79 and 145,191.64

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Solution

The fourth proportional to 381,867.36, 572,874.79 and 145,191.64 is: 217,815.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,867.36 : 572,874.79 = 145,191.64 : x
  2. Step 2: Convert to fraction form
    381,867.36/572,874.79 = 145,191.64/x
  3. Step 3: Cross multiply
    381,867.36x = 572,874.79 × 145,191.64
  4. Step 4: Simplify right side
    381,867.36x = 83,176,628,479.59
  5. Step 5: Solve for x
    x = 83,176,628,479.59/381,867.36
  6. Step 6: Final answer
    x = 217,815.50

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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.