Home / 455,135.08-628,081.86-251,187.88

Finding the Fourth Proportional to 455,135.08, 628,081.86 and 251,187.88

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Solution

The fourth proportional to 455,135.08, 628,081.86 and 251,187.88 is: 346,636.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,135.08 : 628,081.86 = 251,187.88 : x
  2. Step 2: Convert to fraction form
    455,135.08/628,081.86 = 251,187.88/x
  3. Step 3: Cross multiply
    455,135.08x = 628,081.86 × 251,187.88
  4. Step 4: Simplify right side
    455,135.08x = 157,766,550,879.86
  5. Step 5: Solve for x
    x = 157,766,550,879.86/455,135.08
  6. Step 6: Final answer
    x = 346,636.76

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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.