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Finding the Fourth Proportional to 274,265.60, 378,521.57 and 153,413.60

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Solution

The fourth proportional to 274,265.60, 378,521.57 and 153,413.60 is: 211,730.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,265.60 : 378,521.57 = 153,413.60 : x
  2. Step 2: Convert to fraction form
    274,265.60/378,521.57 = 153,413.60/x
  3. Step 3: Cross multiply
    274,265.60x = 378,521.57 × 153,413.60
  4. Step 4: Simplify right side
    274,265.60x = 58,070,355,222.28
  5. Step 5: Solve for x
    x = 58,070,355,222.28/274,265.60
  6. Step 6: Final answer
    x = 211,730.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.