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Finding the Fourth Proportional to 203,263.62, 304,966.17 and 90,955.70

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Solution

The fourth proportional to 203,263.62, 304,966.17 and 90,955.70 is: 136,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,263.62 : 304,966.17 = 90,955.70 : x
  2. Step 2: Convert to fraction form
    203,263.62/304,966.17 = 90,955.70/x
  3. Step 3: Cross multiply
    203,263.62x = 304,966.17 × 90,955.70
  4. Step 4: Simplify right side
    203,263.62x = 27,738,409,943.84
  5. Step 5: Solve for x
    x = 27,738,409,943.84/203,263.62
  6. Step 6: Final answer
    x = 136,465.20

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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.