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Finding the Fourth Proportional to 356,580.44, 534,871.50 and 90,341

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Solution

The fourth proportional to 356,580.44, 534,871.50 and 90,341 is: 135,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,580.44 : 534,871.50 = 90,341 : x
  2. Step 2: Convert to fraction form
    356,580.44/534,871.50 = 90,341/x
  3. Step 3: Cross multiply
    356,580.44x = 534,871.50 × 90,341
  4. Step 4: Simplify right side
    356,580.44x = 48,320,826,181.50
  5. Step 5: Solve for x
    x = 48,320,826,181.50/356,580.44
  6. Step 6: Final answer
    x = 135,511.71

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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.