Home / 208,201.45-287,318.92-112,708.15

Finding the Fourth Proportional to 208,201.45, 287,318.92 and 112,708.15

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Solution

The fourth proportional to 208,201.45, 287,318.92 and 112,708.15 is: 155,537.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,201.45 : 287,318.92 = 112,708.15 : x
  2. Step 2: Convert to fraction form
    208,201.45/287,318.92 = 112,708.15/x
  3. Step 3: Cross multiply
    208,201.45x = 287,318.92 × 112,708.15
  4. Step 4: Simplify right side
    208,201.45x = 32,383,183,933.20
  5. Step 5: Solve for x
    x = 32,383,183,933.20/208,201.45
  6. Step 6: Final answer
    x = 155,537.74

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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.