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Finding the Fourth Proportional to 340,492.70, 509,961.45 and 200,524.70

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Solution

The fourth proportional to 340,492.70, 509,961.45 and 200,524.70 is: 300,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,492.70 : 509,961.45 = 200,524.70 : x
  2. Step 2: Convert to fraction form
    340,492.70/509,961.45 = 200,524.70/x
  3. Step 3: Cross multiply
    340,492.70x = 509,961.45 × 200,524.70
  4. Step 4: Simplify right side
    340,492.70x = 102,259,866,772.82
  5. Step 5: Solve for x
    x = 102,259,866,772.82/340,492.70
  6. Step 6: Final answer
    x = 300,329.10

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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.