Home / 385,310.52-577,965.78-208,934.44

Finding the Fourth Proportional to 385,310.52, 577,965.78 and 208,934.44

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Solution

The fourth proportional to 385,310.52, 577,965.78 and 208,934.44 is: 313,401.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,310.52 : 577,965.78 = 208,934.44 : x
  2. Step 2: Convert to fraction form
    385,310.52/577,965.78 = 208,934.44/x
  3. Step 3: Cross multiply
    385,310.52x = 577,965.78 × 208,934.44
  4. Step 4: Simplify right side
    385,310.52x = 120,756,955,138.55
  5. Step 5: Solve for x
    x = 120,756,955,138.55/385,310.52
  6. Step 6: Final answer
    x = 313,401.66

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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.