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Finding the Fourth Proportional to 312,083.80, 468,125.70 and 259,552.60

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Solution

The fourth proportional to 312,083.80, 468,125.70 and 259,552.60 is: 389,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,083.80 : 468,125.70 = 259,552.60 : x
  2. Step 2: Convert to fraction form
    312,083.80/468,125.70 = 259,552.60/x
  3. Step 3: Cross multiply
    312,083.80x = 468,125.70 × 259,552.60
  4. Step 4: Simplify right side
    312,083.80x = 121,503,242,561.82
  5. Step 5: Solve for x
    x = 121,503,242,561.82/312,083.80
  6. Step 6: Final answer
    x = 389,328.90

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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.