Home / 205,156.20-307,427.10-173,821.80

Finding the Fourth Proportional to 205,156.20, 307,427.10 and 173,821.80

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Solution

The fourth proportional to 205,156.20, 307,427.10 and 173,821.80 is: 260,472.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,156.20 : 307,427.10 = 173,821.80 : x
  2. Step 2: Convert to fraction form
    205,156.20/307,427.10 = 173,821.80/x
  3. Step 3: Cross multiply
    205,156.20x = 307,427.10 × 173,821.80
  4. Step 4: Simplify right side
    205,156.20x = 53,437,531,890.78
  5. Step 5: Solve for x
    x = 53,437,531,890.78/205,156.20
  6. Step 6: Final answer
    x = 260,472.42

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1.5x scale

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.