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Finding the Fourth Proportional to 246,019.20, 369,028.80 and 79,807.20

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Solution

The fourth proportional to 246,019.20, 369,028.80 and 79,807.20 is: 119,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,019.20 : 369,028.80 = 79,807.20 : x
  2. Step 2: Convert to fraction form
    246,019.20/369,028.80 = 79,807.20/x
  3. Step 3: Cross multiply
    246,019.20x = 369,028.80 × 79,807.20
  4. Step 4: Simplify right side
    246,019.20x = 29,451,155,247.36
  5. Step 5: Solve for x
    x = 29,451,155,247.36/246,019.20
  6. Step 6: Final answer
    x = 119,710.80

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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.