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Finding the Fourth Proportional to 245,413.80, 368,120.70 and 166,098.60

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Solution

The fourth proportional to 245,413.80, 368,120.70 and 166,098.60 is: 249,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,413.80 : 368,120.70 = 166,098.60 : x
  2. Step 2: Convert to fraction form
    245,413.80/368,120.70 = 166,098.60/x
  3. Step 3: Cross multiply
    245,413.80x = 368,120.70 × 166,098.60
  4. Step 4: Simplify right side
    245,413.80x = 61,144,332,901.02
  5. Step 5: Solve for x
    x = 61,144,332,901.02/245,413.80
  6. Step 6: Final answer
    x = 249,147.90

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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.