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Finding the Fourth Proportional to 440,413.80, 660,329.10 and 159,894.60

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Solution

The fourth proportional to 440,413.80, 660,329.10 and 159,894.60 is: 239,736.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,413.80 : 660,329.10 = 159,894.60 : x
  2. Step 2: Convert to fraction form
    440,413.80/660,329.10 = 159,894.60/x
  3. Step 3: Cross multiply
    440,413.80x = 660,329.10 × 159,894.60
  4. Step 4: Simplify right side
    440,413.80x = 105,583,057,312.86
  5. Step 5: Solve for x
    x = 105,583,057,312.86/440,413.80
  6. Step 6: Final answer
    x = 239,736.03

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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.