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Finding the Fourth Proportional to 203,052.80, 304,627.80 and 103,228.40

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Solution

The fourth proportional to 203,052.80, 304,627.80 and 103,228.40 is: 154,867.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,052.80 : 304,627.80 = 103,228.40 : x
  2. Step 2: Convert to fraction form
    203,052.80/304,627.80 = 103,228.40/x
  3. Step 3: Cross multiply
    203,052.80x = 304,627.80 × 103,228.40
  4. Step 4: Simplify right side
    203,052.80x = 31,446,240,389.52
  5. Step 5: Solve for x
    x = 31,446,240,389.52/203,052.80
  6. Step 6: Final answer
    x = 154,867.31

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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.