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Finding the Fourth Proportional to 455,269.04, 628,334.56 and 254,078

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Solution

The fourth proportional to 455,269.04, 628,334.56 and 254,078 is: 350,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,269.04 : 628,334.56 = 254,078 : x
  2. Step 2: Convert to fraction form
    455,269.04/628,334.56 = 254,078/x
  3. Step 3: Cross multiply
    455,269.04x = 628,334.56 × 254,078
  4. Step 4: Simplify right side
    455,269.04x = 159,645,988,335.68
  5. Step 5: Solve for x
    x = 159,645,988,335.68/455,269.04
  6. Step 6: Final answer
    x = 350,662.96

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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.