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Finding the Fourth Proportional to 202,385.70, 303,578.55 and 97,179.30

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Solution

The fourth proportional to 202,385.70, 303,578.55 and 97,179.30 is: 145,768.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,385.70 : 303,578.55 = 97,179.30 : x
  2. Step 2: Convert to fraction form
    202,385.70/303,578.55 = 97,179.30/x
  3. Step 3: Cross multiply
    202,385.70x = 303,578.55 × 97,179.30
  4. Step 4: Simplify right side
    202,385.70x = 29,501,550,984.02
  5. Step 5: Solve for x
    x = 29,501,550,984.02/202,385.70
  6. Step 6: Final answer
    x = 145,768.95

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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.