Home / 384,895.40-531,134.22-212,803.41

Finding the Fourth Proportional to 384,895.40, 531,134.22 and 212,803.41

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Solution

The fourth proportional to 384,895.40, 531,134.22 and 212,803.41 is: 293,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,895.40 : 531,134.22 = 212,803.41 : x
  2. Step 2: Convert to fraction form
    384,895.40/531,134.22 = 212,803.41/x
  3. Step 3: Cross multiply
    384,895.40x = 531,134.22 × 212,803.41
  4. Step 4: Simplify right side
    384,895.40x = 113,027,173,183.69
  5. Step 5: Solve for x
    x = 113,027,173,183.69/384,895.40
  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.