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Finding the Fourth Proportional to 293,729.59, 440,603.96 and 139,822.20

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Solution

The fourth proportional to 293,729.59, 440,603.96 and 139,822.20 is: 209,737.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,729.59 : 440,603.96 = 139,822.20 : x
  2. Step 2: Convert to fraction form
    293,729.59/440,603.96 = 139,822.20/x
  3. Step 3: Cross multiply
    293,729.59x = 440,603.96 × 139,822.20
  4. Step 4: Simplify right side
    293,729.59x = 61,606,214,316.80
  5. Step 5: Solve for x
    x = 61,606,214,316.80/293,729.59
  6. Step 6: Final answer
    x = 209,737.85

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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.