Home / 284,822.10-426,859.38-209,589.98

Finding the Fourth Proportional to 284,822.10, 426,859.38 and 209,589.98

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Solution

The fourth proportional to 284,822.10, 426,859.38 and 209,589.98 is: 314,109.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,822.10 : 426,859.38 = 209,589.98 : x
  2. Step 2: Convert to fraction form
    284,822.10/426,859.38 = 209,589.98/x
  3. Step 3: Cross multiply
    284,822.10x = 426,859.38 × 209,589.98
  4. Step 4: Simplify right side
    284,822.10x = 89,465,446,782.72
  5. Step 5: Solve for x
    x = 89,465,446,782.72/284,822.10
  6. Step 6: Final answer
    x = 314,109.92

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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.