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Finding the Fourth Proportional to 287,586.56, 396,872.24 and 158,530.01

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Solution

The fourth proportional to 287,586.56, 396,872.24 and 158,530.01 is: 218,772.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,586.56 : 396,872.24 = 158,530.01 : x
  2. Step 2: Convert to fraction form
    287,586.56/396,872.24 = 158,530.01/x
  3. Step 3: Cross multiply
    287,586.56x = 396,872.24 × 158,530.01
  4. Step 4: Simplify right side
    287,586.56x = 62,916,157,398.91
  5. Step 5: Solve for x
    x = 62,916,157,398.91/287,586.56
  6. Step 6: Final answer
    x = 218,772.94

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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.