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Finding the Fourth Proportional to 202,296.30, 303,444.45 and 139,310.70

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Solution

The fourth proportional to 202,296.30, 303,444.45 and 139,310.70 is: 208,966.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,296.30 : 303,444.45 = 139,310.70 : x
  2. Step 2: Convert to fraction form
    202,296.30/303,444.45 = 139,310.70/x
  3. Step 3: Cross multiply
    202,296.30x = 303,444.45 × 139,310.70
  4. Step 4: Simplify right side
    202,296.30x = 42,273,058,740.62
  5. Step 5: Solve for x
    x = 42,273,058,740.62/202,296.30
  6. Step 6: Final answer
    x = 208,966.05

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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.