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Finding the Fourth Proportional to 455,063.22, 627,986.76 and 251,114.10

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Solution

The fourth proportional to 455,063.22, 627,986.76 and 251,114.10 is: 346,537.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,063.22 : 627,986.76 = 251,114.10 : x
  2. Step 2: Convert to fraction form
    455,063.22/627,986.76 = 251,114.10/x
  3. Step 3: Cross multiply
    455,063.22x = 627,986.76 × 251,114.10
  4. Step 4: Simplify right side
    455,063.22x = 157,696,330,049.32
  5. Step 5: Solve for x
    x = 157,696,330,049.32/455,063.22
  6. Step 6: Final answer
    x = 346,537.19

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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.