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Finding the Fourth Proportional to 230,413.05, 345,775.23 and 80,654.58

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Solution

The fourth proportional to 230,413.05, 345,775.23 and 80,654.58 is: 121,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,413.05 : 345,775.23 = 80,654.58 : x
  2. Step 2: Convert to fraction form
    230,413.05/345,775.23 = 80,654.58/x
  3. Step 3: Cross multiply
    230,413.05x = 345,775.23 × 80,654.58
  4. Step 4: Simplify right side
    230,413.05x = 27,888,355,950.05
  5. Step 5: Solve for x
    x = 27,888,355,950.05/230,413.05
  6. Step 6: Final answer
    x = 121,036.36

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1.5x scale

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.