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Finding the Fourth Proportional to 202,669.80, 304,004.70 and 90,349.80

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Solution

The fourth proportional to 202,669.80, 304,004.70 and 90,349.80 is: 135,524.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,669.80 : 304,004.70 = 90,349.80 : x
  2. Step 2: Convert to fraction form
    202,669.80/304,004.70 = 90,349.80/x
  3. Step 3: Cross multiply
    202,669.80x = 304,004.70 × 90,349.80
  4. Step 4: Simplify right side
    202,669.80x = 27,466,763,844.06
  5. Step 5: Solve for x
    x = 27,466,763,844.06/202,669.80
  6. Step 6: Final answer
    x = 135,524.70

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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.