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Finding the Fourth Proportional to 202,236.30, 303,354.45 and 139,250.70

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Solution

The fourth proportional to 202,236.30, 303,354.45 and 139,250.70 is: 208,876.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,236.30 : 303,354.45 = 139,250.70 : x
  2. Step 2: Convert to fraction form
    202,236.30/303,354.45 = 139,250.70/x
  3. Step 3: Cross multiply
    202,236.30x = 303,354.45 × 139,250.70
  4. Step 4: Simplify right side
    202,236.30x = 42,242,319,510.62
  5. Step 5: Solve for x
    x = 42,242,319,510.62/202,236.30
  6. Step 6: Final answer
    x = 208,876.05

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1.5x scale

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.