Home / 284,217.09-426,325.65-84,540.34

Finding the Fourth Proportional to 284,217.09, 426,325.65 and 84,540.34

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Solution

The fourth proportional to 284,217.09, 426,325.65 and 84,540.34 is: 126,810.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,217.09 : 426,325.65 = 84,540.34 : x
  2. Step 2: Convert to fraction form
    284,217.09/426,325.65 = 84,540.34/x
  3. Step 3: Cross multiply
    284,217.09x = 426,325.65 × 84,540.34
  4. Step 4: Simplify right side
    284,217.09x = 36,041,715,401.72
  5. Step 5: Solve for x
    x = 36,041,715,401.72/284,217.09
  6. Step 6: Final answer
    x = 126,810.51

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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.