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Finding the Fourth Proportional to 202,354.34, 303,532.72 and 90,008.15

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Solution

The fourth proportional to 202,354.34, 303,532.72 and 90,008.15 is: 135,012.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,354.34 : 303,532.72 = 90,008.15 : x
  2. Step 2: Convert to fraction form
    202,354.34/303,532.72 = 90,008.15/x
  3. Step 3: Cross multiply
    202,354.34x = 303,532.72 × 90,008.15
  4. Step 4: Simplify right side
    202,354.34x = 27,320,416,848.98
  5. Step 5: Solve for x
    x = 27,320,416,848.98/202,354.34
  6. Step 6: Final answer
    x = 135,012.76

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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.