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Finding the Fourth Proportional to 202,446.70, 303,670.05 and 91,638.70

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Solution

The fourth proportional to 202,446.70, 303,670.05 and 91,638.70 is: 137,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,446.70 : 303,670.05 = 91,638.70 : x
  2. Step 2: Convert to fraction form
    202,446.70/303,670.05 = 91,638.70/x
  3. Step 3: Cross multiply
    202,446.70x = 303,670.05 × 91,638.70
  4. Step 4: Simplify right side
    202,446.70x = 27,827,928,610.94
  5. Step 5: Solve for x
    x = 27,827,928,610.94/202,446.70
  6. Step 6: Final answer
    x = 137,458.05

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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.