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Finding the Fourth Proportional to 455,249.61, 628,244.60 and 251,300.70

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Solution

The fourth proportional to 455,249.61, 628,244.60 and 251,300.70 is: 346,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,249.61 : 628,244.60 = 251,300.70 : x
  2. Step 2: Convert to fraction form
    455,249.61/628,244.60 = 251,300.70/x
  3. Step 3: Cross multiply
    455,249.61x = 628,244.60 × 251,300.70
  4. Step 4: Simplify right side
    455,249.61x = 157,878,306,494.72
  5. Step 5: Solve for x
    x = 157,878,306,494.72/455,249.61
  6. Step 6: Final answer
    x = 346,795.04

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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.