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Finding the Fourth Proportional to 203,059.04, 304,660.68 and 90,728.96

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Solution

The fourth proportional to 203,059.04, 304,660.68 and 90,728.96 is: 136,125.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,059.04 : 304,660.68 = 90,728.96 : x
  2. Step 2: Convert to fraction form
    203,059.04/304,660.68 = 90,728.96/x
  3. Step 3: Cross multiply
    203,059.04x = 304,660.68 × 90,728.96
  4. Step 4: Simplify right side
    203,059.04x = 27,641,546,649.29
  5. Step 5: Solve for x
    x = 27,641,546,649.29/203,059.04
  6. Step 6: Final answer
    x = 136,125.66

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1.5x scale

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.