Home / 259,108.28-387,784.57-159,331.67

Finding the Fourth Proportional to 259,108.28, 387,784.57 and 159,331.67

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Solution

The fourth proportional to 259,108.28, 387,784.57 and 159,331.67 is: 238,457.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,108.28 : 387,784.57 = 159,331.67 : x
  2. Step 2: Convert to fraction form
    259,108.28/387,784.57 = 159,331.67/x
  3. Step 3: Cross multiply
    259,108.28x = 387,784.57 × 159,331.67
  4. Step 4: Simplify right side
    259,108.28x = 61,786,363,138.33
  5. Step 5: Solve for x
    x = 61,786,363,138.33/259,108.28
  6. Step 6: Final answer
    x = 238,457.69

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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.