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Finding the Fourth Proportional to 306,323.60, 458,448.60 and 268,998.80

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Solution

The fourth proportional to 306,323.60, 458,448.60 and 268,998.80 is: 402,587.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,323.60 : 458,448.60 = 268,998.80 : x
  2. Step 2: Convert to fraction form
    306,323.60/458,448.60 = 268,998.80/x
  3. Step 3: Cross multiply
    306,323.60x = 458,448.60 × 268,998.80
  4. Step 4: Simplify right side
    306,323.60x = 123,322,123,261.68
  5. Step 5: Solve for x
    x = 123,322,123,261.68/306,323.60
  6. Step 6: Final answer
    x = 402,587.73

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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.