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Finding the Fourth Proportional to 287,374.57, 396,576.68 and 166,585.82

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Solution

The fourth proportional to 287,374.57, 396,576.68 and 166,585.82 is: 229,888.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,374.57 : 396,576.68 = 166,585.82 : x
  2. Step 2: Convert to fraction form
    287,374.57/396,576.68 = 166,585.82/x
  3. Step 3: Cross multiply
    287,374.57x = 396,576.68 × 166,585.82
  4. Step 4: Simplify right side
    287,374.57x = 66,064,048,614.87
  5. Step 5: Solve for x
    x = 66,064,048,614.87/287,374.57
  6. Step 6: Final answer
    x = 229,888.29

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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.