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Finding the Fourth Proportional to 525,413.34, 788,230.70 and 170,399.68

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Solution

The fourth proportional to 525,413.34, 788,230.70 and 170,399.68 is: 255,635.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,413.34 : 788,230.70 = 170,399.68 : x
  2. Step 2: Convert to fraction form
    525,413.34/788,230.70 = 170,399.68/x
  3. Step 3: Cross multiply
    525,413.34x = 788,230.70 × 170,399.68
  4. Step 4: Simplify right side
    525,413.34x = 134,314,259,046.18
  5. Step 5: Solve for x
    x = 134,314,259,046.18/525,413.34
  6. Step 6: Final answer
    x = 255,635.42

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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.