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Finding the Fourth Proportional to 385,801.31, 578,702.03 and 161,039.14

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Solution

The fourth proportional to 385,801.31, 578,702.03 and 161,039.14 is: 241,558.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,801.31 : 578,702.03 = 161,039.14 : x
  2. Step 2: Convert to fraction form
    385,801.31/578,702.03 = 161,039.14/x
  3. Step 3: Cross multiply
    385,801.31x = 578,702.03 × 161,039.14
  4. Step 4: Simplify right side
    385,801.31x = 93,193,676,183.30
  5. Step 5: Solve for x
    x = 93,193,676,183.30/385,801.31
  6. Step 6: Final answer
    x = 241,558.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.