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Finding the Fourth Proportional to 203,300.36, 304,827.06 and 90,959.66

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Solution

The fourth proportional to 203,300.36, 304,827.06 and 90,959.66 is: 136,384.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,300.36 : 304,827.06 = 90,959.66 : x
  2. Step 2: Convert to fraction form
    203,300.36/304,827.06 = 90,959.66/x
  3. Step 3: Cross multiply
    203,300.36x = 304,827.06 × 90,959.66
  4. Step 4: Simplify right side
    203,300.36x = 27,726,965,736.40
  5. Step 5: Solve for x
    x = 27,726,965,736.40/203,300.36
  6. Step 6: Final answer
    x = 136,384.24

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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.