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Finding the Fourth Proportional to 287,246.41, 396,392.84 and 158,183.87

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Solution

The fourth proportional to 287,246.41, 396,392.84 and 158,183.87 is: 218,289.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,246.41 : 396,392.84 = 158,183.87 : x
  2. Step 2: Convert to fraction form
    287,246.41/396,392.84 = 158,183.87/x
  3. Step 3: Cross multiply
    287,246.41x = 396,392.84 × 158,183.87
  4. Step 4: Simplify right side
    287,246.41x = 62,702,953,471.49
  5. Step 5: Solve for x
    x = 62,702,953,471.49/287,246.41
  6. Step 6: Final answer
    x = 218,289.77

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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.