Home / 384,895.41-531,134.21-212,803.43

Finding the Fourth Proportional to 384,895.41, 531,134.21 and 212,803.43

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Solution

The fourth proportional to 384,895.41, 531,134.21 and 212,803.43 is: 293,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,895.41 : 531,134.21 = 212,803.43 : x
  2. Step 2: Convert to fraction form
    384,895.41/531,134.21 = 212,803.43/x
  3. Step 3: Cross multiply
    384,895.41x = 531,134.21 × 212,803.43
  4. Step 4: Simplify right side
    384,895.41x = 113,027,177,958.65
  5. Step 5: Solve for x
    x = 113,027,177,958.65/384,895.41
  6. Step 6: Final answer
    x = 293,656.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.