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Finding the Fourth Proportional to 246,646.50, 369,981.90 and 80,434.50

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Solution

The fourth proportional to 246,646.50, 369,981.90 and 80,434.50 is: 120,655.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,646.50 : 369,981.90 = 80,434.50 : x
  2. Step 2: Convert to fraction form
    246,646.50/369,981.90 = 80,434.50/x
  3. Step 3: Cross multiply
    246,646.50x = 369,981.90 × 80,434.50
  4. Step 4: Simplify right side
    246,646.50x = 29,759,309,135.55
  5. Step 5: Solve for x
    x = 29,759,309,135.55/246,646.50
  6. Step 6: Final answer
    x = 120,655.71

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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.