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Finding the Fourth Proportional to 403,751.67, 605,629.80 and 104,211.77

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Solution

The fourth proportional to 403,751.67, 605,629.80 and 104,211.77 is: 156,318.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,751.67 : 605,629.80 = 104,211.77 : x
  2. Step 2: Convert to fraction form
    403,751.67/605,629.80 = 104,211.77/x
  3. Step 3: Cross multiply
    403,751.67x = 605,629.80 × 104,211.77
  4. Step 4: Simplify right side
    403,751.67x = 63,113,752,901.69
  5. Step 5: Solve for x
    x = 63,113,752,901.69/403,751.67
  6. Step 6: Final answer
    x = 156,318.25

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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.