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Finding the Fourth Proportional to 203,103.54, 304,717.59 and 90,878.22

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Solution

The fourth proportional to 203,103.54, 304,717.59 and 90,878.22 is: 136,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,103.54 : 304,717.59 = 90,878.22 : x
  2. Step 2: Convert to fraction form
    203,103.54/304,717.59 = 90,878.22/x
  3. Step 3: Cross multiply
    203,103.54x = 304,717.59 × 90,878.22
  4. Step 4: Simplify right side
    203,103.54x = 27,692,192,181.89
  5. Step 5: Solve for x
    x = 27,692,192,181.89/203,103.54
  6. Step 6: Final answer
    x = 136,345.20

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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.