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Finding the Fourth Proportional to 403,511.96, 605,126.50 and 119,126.63

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Solution

The fourth proportional to 403,511.96, 605,126.50 and 119,126.63 is: 178,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,511.96 : 605,126.50 = 119,126.63 : x
  2. Step 2: Convert to fraction form
    403,511.96/605,126.50 = 119,126.63/x
  3. Step 3: Cross multiply
    403,511.96x = 605,126.50 × 119,126.63
  4. Step 4: Simplify right side
    403,511.96x = 72,086,681,883.69
  5. Step 5: Solve for x
    x = 72,086,681,883.69/403,511.96
  6. Step 6: Final answer
    x = 178,648.19

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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.