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Finding the Fourth Proportional to 200,221.65, 276,212.52 and 115,289.49

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Solution

The fourth proportional to 200,221.65, 276,212.52 and 115,289.49 is: 159,045.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,221.65 : 276,212.52 = 115,289.49 : x
  2. Step 2: Convert to fraction form
    200,221.65/276,212.52 = 115,289.49/x
  3. Step 3: Cross multiply
    200,221.65x = 276,212.52 × 115,289.49
  4. Step 4: Simplify right side
    200,221.65x = 31,844,400,562.41
  5. Step 5: Solve for x
    x = 31,844,400,562.41/200,221.65
  6. Step 6: Final answer
    x = 159,045.74

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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.