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Finding the Fourth Proportional to 203,298.36, 304,824.06 and 90,957.66

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Solution

The fourth proportional to 203,298.36, 304,824.06 and 90,957.66 is: 136,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,298.36 : 304,824.06 = 90,957.66 : x
  2. Step 2: Convert to fraction form
    203,298.36/304,824.06 = 90,957.66/x
  3. Step 3: Cross multiply
    203,298.36x = 304,824.06 × 90,957.66
  4. Step 4: Simplify right side
    203,298.36x = 27,726,083,209.30
  5. Step 5: Solve for x
    x = 27,726,083,209.30/203,298.36
  6. Step 6: Final answer
    x = 136,381.24

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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.