Home / 340,377.50-469,784.00-197,137.55

Finding the Fourth Proportional to 340,377.50, 469,784.00 and 197,137.55

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Solution

The fourth proportional to 340,377.50, 469,784.00 and 197,137.55 is: 272,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,377.50 : 469,784.00 = 197,137.55 : x
  2. Step 2: Convert to fraction form
    340,377.50/469,784.00 = 197,137.55/x
  3. Step 3: Cross multiply
    340,377.50x = 469,784.00 × 197,137.55
  4. Step 4: Simplify right side
    340,377.50x = 92,612,065,813.97
  5. Step 5: Solve for x
    x = 92,612,065,813.97/340,377.50
  6. Step 6: Final answer
    x = 272,086.33

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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.