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Finding the Fourth Proportional to 246,871.30, 370,319.10 and 128,773.30

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Solution

The fourth proportional to 246,871.30, 370,319.10 and 128,773.30 is: 193,166.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,871.30 : 370,319.10 = 128,773.30 : x
  2. Step 2: Convert to fraction form
    246,871.30/370,319.10 = 128,773.30/x
  3. Step 3: Cross multiply
    246,871.30x = 370,319.10 × 128,773.30
  4. Step 4: Simplify right side
    246,871.30x = 47,687,212,560.03
  5. Step 5: Solve for x
    x = 47,687,212,560.03/246,871.30
  6. Step 6: Final answer
    x = 193,166.29

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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.