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Finding the Fourth Proportional to 202,250.30, 303,375.45 and 139,264.70

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Solution

The fourth proportional to 202,250.30, 303,375.45 and 139,264.70 is: 208,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,250.30 : 303,375.45 = 139,264.70 : x
  2. Step 2: Convert to fraction form
    202,250.30/303,375.45 = 139,264.70/x
  3. Step 3: Cross multiply
    202,250.30x = 303,375.45 × 139,264.70
  4. Step 4: Simplify right side
    202,250.30x = 42,249,491,031.62
  5. Step 5: Solve for x
    x = 42,249,491,031.62/202,250.30
  6. Step 6: Final answer
    x = 208,897.05

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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.