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Finding the Fourth Proportional to 230,550.94, 345,856.65 and 90,291.34

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Solution

The fourth proportional to 230,550.94, 345,856.65 and 90,291.34 is: 135,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,550.94 : 345,856.65 = 90,291.34 : x
  2. Step 2: Convert to fraction form
    230,550.94/345,856.65 = 90,291.34/x
  3. Step 3: Cross multiply
    230,550.94x = 345,856.65 × 90,291.34
  4. Step 4: Simplify right side
    230,550.94x = 31,227,860,376.41
  5. Step 5: Solve for x
    x = 31,227,860,376.41/230,550.94
  6. Step 6: Final answer
    x = 135,448.85

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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.