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Finding the Fourth Proportional to 455,207.54, 628,249.65 and 254,016.50

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Solution

The fourth proportional to 455,207.54, 628,249.65 and 254,016.50 is: 350,578.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,207.54 : 628,249.65 = 254,016.50 : x
  2. Step 2: Convert to fraction form
    455,207.54/628,249.65 = 254,016.50/x
  3. Step 3: Cross multiply
    455,207.54x = 628,249.65 × 254,016.50
  4. Step 4: Simplify right side
    455,207.54x = 159,585,777,219.23
  5. Step 5: Solve for x
    x = 159,585,777,219.23/455,207.54
  6. Step 6: Final answer
    x = 350,578.06

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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.