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Finding the Fourth Proportional to 356,511.75, 534,768.83 and 90,272.14

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Solution

The fourth proportional to 356,511.75, 534,768.83 and 90,272.14 is: 135,408.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,511.75 : 534,768.83 = 90,272.14 : x
  2. Step 2: Convert to fraction form
    356,511.75/534,768.83 = 90,272.14/x
  3. Step 3: Cross multiply
    356,511.75x = 534,768.83 × 90,272.14
  4. Step 4: Simplify right side
    356,511.75x = 48,274,725,747.41
  5. Step 5: Solve for x
    x = 48,274,725,747.41/356,511.75
  6. Step 6: Final answer
    x = 135,408.51

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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.