Home / 280,652.88-421,084.04-168,413.70

Finding the Fourth Proportional to 280,652.88, 421,084.04 and 168,413.70

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Solution

The fourth proportional to 280,652.88, 421,084.04 and 168,413.70 is: 252,683.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,652.88 : 421,084.04 = 168,413.70 : x
  2. Step 2: Convert to fraction form
    280,652.88/421,084.04 = 168,413.70/x
  3. Step 3: Cross multiply
    280,652.88x = 421,084.04 × 168,413.70
  4. Step 4: Simplify right side
    280,652.88x = 70,916,320,345.28
  5. Step 5: Solve for x
    x = 70,916,320,345.28/280,652.88
  6. Step 6: Final answer
    x = 252,683.39

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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.