Home / 455,288.09-628,302.64-251,339.11

Finding the Fourth Proportional to 455,288.09, 628,302.64 and 251,339.11

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Solution

The fourth proportional to 455,288.09, 628,302.64 and 251,339.11 is: 346,850.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,288.09 : 628,302.64 = 251,339.11 : x
  2. Step 2: Convert to fraction form
    455,288.09/628,302.64 = 251,339.11/x
  3. Step 3: Cross multiply
    455,288.09x = 628,302.64 × 251,339.11
  4. Step 4: Simplify right side
    455,288.09x = 157,917,024,620.41
  5. Step 5: Solve for x
    x = 157,917,024,620.41/455,288.09
  6. Step 6: Final answer
    x = 346,850.77

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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.