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Finding the Fourth Proportional to 425,387.50, 587,047.11 and 234,413.20

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Solution

The fourth proportional to 425,387.50, 587,047.11 and 234,413.20 is: 323,497.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,387.50 : 587,047.11 = 234,413.20 : x
  2. Step 2: Convert to fraction form
    425,387.50/587,047.11 = 234,413.20/x
  3. Step 3: Cross multiply
    425,387.50x = 587,047.11 × 234,413.20
  4. Step 4: Simplify right side
    425,387.50x = 137,611,591,605.85
  5. Step 5: Solve for x
    x = 137,611,591,605.85/425,387.50
  6. Step 6: Final answer
    x = 323,497.03

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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.