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Finding the Fourth Proportional to 303,705.30, 455,557.94 and 90,476.44

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Solution

The fourth proportional to 303,705.30, 455,557.94 and 90,476.44 is: 135,714.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,705.30 : 455,557.94 = 90,476.44 : x
  2. Step 2: Convert to fraction form
    303,705.30/455,557.94 = 90,476.44/x
  3. Step 3: Cross multiply
    303,705.30x = 455,557.94 × 90,476.44
  4. Step 4: Simplify right side
    303,705.30x = 41,217,260,624.93
  5. Step 5: Solve for x
    x = 41,217,260,624.93/303,705.30
  6. Step 6: Final answer
    x = 135,714.66

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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.