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Finding the Fourth Proportional to 306,375.93, 422,785.15 and 177,293.72

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Solution

The fourth proportional to 306,375.93, 422,785.15 and 177,293.72 is: 244,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,375.93 : 422,785.15 = 177,293.72 : x
  2. Step 2: Convert to fraction form
    306,375.93/422,785.15 = 177,293.72/x
  3. Step 3: Cross multiply
    306,375.93x = 422,785.15 × 177,293.72
  4. Step 4: Simplify right side
    306,375.93x = 74,957,152,421.93
  5. Step 5: Solve for x
    x = 74,957,152,421.93/306,375.93
  6. Step 6: Final answer
    x = 244,657.45

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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.