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Finding the Fourth Proportional to 331,605.68, 497,490.53 and 106,989.84

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Solution

The fourth proportional to 331,605.68, 497,490.53 and 106,989.84 is: 160,511.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,605.68 : 497,490.53 = 106,989.84 : x
  2. Step 2: Convert to fraction form
    331,605.68/497,490.53 = 106,989.84/x
  3. Step 3: Cross multiply
    331,605.68x = 497,490.53 × 106,989.84
  4. Step 4: Simplify right side
    331,605.68x = 53,226,431,671.27
  5. Step 5: Solve for x
    x = 53,226,431,671.27/331,605.68
  6. Step 6: Final answer
    x = 160,511.22

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1.5x scale

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.