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Finding the Fourth Proportional to 445,582.50, 668,413.08 and 125,737.20

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Solution

The fourth proportional to 445,582.50, 668,413.08 and 125,737.20 is: 188,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,582.50 : 668,413.08 = 125,737.20 : x
  2. Step 2: Convert to fraction form
    445,582.50/668,413.08 = 125,737.20/x
  3. Step 3: Cross multiply
    445,582.50x = 668,413.08 × 125,737.20
  4. Step 4: Simplify right side
    445,582.50x = 84,044,389,122.58
  5. Step 5: Solve for x
    x = 84,044,389,122.58/445,582.50
  6. Step 6: Final answer
    x = 188,616.90

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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.