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Finding the Fourth Proportional to 326,027.58, 488,988.78 and 89,314.92

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Solution

The fourth proportional to 326,027.58, 488,988.78 and 89,314.92 is: 133,957.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,027.58 : 488,988.78 = 89,314.92 : x
  2. Step 2: Convert to fraction form
    326,027.58/488,988.78 = 89,314.92/x
  3. Step 3: Cross multiply
    326,027.58x = 488,988.78 × 89,314.92
  4. Step 4: Simplify right side
    326,027.58x = 43,673,993,766.60
  5. Step 5: Solve for x
    x = 43,673,993,766.60/326,027.58
  6. Step 6: Final answer
    x = 133,957.97

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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.