Home / 258,190.92-387,275.85-89,749.44

Finding the Fourth Proportional to 258,190.92, 387,275.85 and 89,749.44

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Solution

The fourth proportional to 258,190.92, 387,275.85 and 89,749.44 is: 134,620.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,190.92 : 387,275.85 = 89,749.44 : x
  2. Step 2: Convert to fraction form
    258,190.92/387,275.85 = 89,749.44/x
  3. Step 3: Cross multiply
    258,190.92x = 387,275.85 × 89,749.44
  4. Step 4: Simplify right side
    258,190.92x = 34,757,790,663.02
  5. Step 5: Solve for x
    x = 34,757,790,663.02/258,190.92
  6. Step 6: Final answer
    x = 134,620.50

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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.