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Finding the Fourth Proportional to 455,208.54, 628,251.03 and 254,017.50

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Solution

The fourth proportional to 455,208.54, 628,251.03 and 254,017.50 is: 350,579.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,208.54 : 628,251.03 = 254,017.50 : x
  2. Step 2: Convert to fraction form
    455,208.54/628,251.03 = 254,017.50/x
  3. Step 3: Cross multiply
    455,208.54x = 628,251.03 × 254,017.50
  4. Step 4: Simplify right side
    455,208.54x = 159,586,756,013.03
  5. Step 5: Solve for x
    x = 159,586,756,013.03/455,208.54
  6. Step 6: Final answer
    x = 350,579.44

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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.