Home / 345,192.78-476,120.66-230,413.55

Finding the Fourth Proportional to 345,192.78, 476,120.66 and 230,413.55

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Solution

The fourth proportional to 345,192.78, 476,120.66 and 230,413.55 is: 317,806.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,192.78 : 476,120.66 = 230,413.55 : x
  2. Step 2: Convert to fraction form
    345,192.78/476,120.66 = 230,413.55/x
  3. Step 3: Cross multiply
    345,192.78x = 476,120.66 × 230,413.55
  4. Step 4: Simplify right side
    345,192.78x = 109,704,651,537.18
  5. Step 5: Solve for x
    x = 109,704,651,537.18/345,192.78
  6. Step 6: Final answer
    x = 317,806.91

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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.