Home / 208,212.75-312,443.51-191,272.92

Finding the Fourth Proportional to 208,212.75, 312,443.51 and 191,272.92

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Solution

The fourth proportional to 208,212.75, 312,443.51 and 191,272.92 is: 287,023.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,212.75 : 312,443.51 = 191,272.92 : x
  2. Step 2: Convert to fraction form
    208,212.75/312,443.51 = 191,272.92/x
  3. Step 3: Cross multiply
    208,212.75x = 312,443.51 × 191,272.92
  4. Step 4: Simplify right side
    208,212.75x = 59,761,981,408.71
  5. Step 5: Solve for x
    x = 59,761,981,408.71/208,212.75
  6. Step 6: Final answer
    x = 287,023.64

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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.