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Finding the Fourth Proportional to 480,653.23, 721,413.20 and 256,200.61

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Solution

The fourth proportional to 480,653.23, 721,413.20 and 256,200.61 is: 384,531.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,653.23 : 721,413.20 = 256,200.61 : x
  2. Step 2: Convert to fraction form
    480,653.23/721,413.20 = 256,200.61/x
  3. Step 3: Cross multiply
    480,653.23x = 721,413.20 × 256,200.61
  4. Step 4: Simplify right side
    480,653.23x = 184,826,501,902.05
  5. Step 5: Solve for x
    x = 184,826,501,902.05/480,653.23
  6. Step 6: Final answer
    x = 384,531.90

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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.