Home / 259,018.16-387,809.83-132,385.69

Finding the Fourth Proportional to 259,018.16, 387,809.83 and 132,385.69

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Solution

The fourth proportional to 259,018.16, 387,809.83 and 132,385.69 is: 198,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,018.16 : 387,809.83 = 132,385.69 : x
  2. Step 2: Convert to fraction form
    259,018.16/387,809.83 = 132,385.69/x
  3. Step 3: Cross multiply
    259,018.16x = 387,809.83 × 132,385.69
  4. Step 4: Simplify right side
    259,018.16x = 51,340,471,838.91
  5. Step 5: Solve for x
    x = 51,340,471,838.91/259,018.16
  6. Step 6: Final answer
    x = 198,211.87

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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.