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Finding the Fourth Proportional to 315,625.44, 435,545.46 and 179,692.50

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Solution

The fourth proportional to 315,625.44, 435,545.46 and 179,692.50 is: 247,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,625.44 : 435,545.46 = 179,692.50 : x
  2. Step 2: Convert to fraction form
    315,625.44/435,545.46 = 179,692.50/x
  3. Step 3: Cross multiply
    315,625.44x = 435,545.46 × 179,692.50
  4. Step 4: Simplify right side
    315,625.44x = 78,264,252,571.05
  5. Step 5: Solve for x
    x = 78,264,252,571.05/315,625.44
  6. Step 6: Final answer
    x = 247,965.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.