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Finding the Fourth Proportional to 208,134.97, 287,226.28 and 112,641.67

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Solution

The fourth proportional to 208,134.97, 287,226.28 and 112,641.67 is: 155,445.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,134.97 : 287,226.28 = 112,641.67 : x
  2. Step 2: Convert to fraction form
    208,134.97/287,226.28 = 112,641.67/x
  3. Step 3: Cross multiply
    208,134.97x = 287,226.28 × 112,641.67
  4. Step 4: Simplify right side
    208,134.97x = 32,353,647,847.09
  5. Step 5: Solve for x
    x = 32,353,647,847.09/208,134.97
  6. Step 6: Final answer
    x = 155,445.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.