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Finding the Fourth Proportional to 246,655.60, 369,993.79 and 78,172.22

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Solution

The fourth proportional to 246,655.60, 369,993.79 and 78,172.22 is: 117,261.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,655.60 : 369,993.79 = 78,172.22 : x
  2. Step 2: Convert to fraction form
    246,655.60/369,993.79 = 78,172.22/x
  3. Step 3: Cross multiply
    246,655.60x = 369,993.79 × 78,172.22
  4. Step 4: Simplify right side
    246,655.60x = 28,923,235,950.51
  5. Step 5: Solve for x
    x = 28,923,235,950.51/246,655.60
  6. Step 6: Final answer
    x = 117,261.62

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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.