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Finding the Fourth Proportional to 455,062.32, 627,981.69 and 251,114.97

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Solution

The fourth proportional to 455,062.32, 627,981.69 and 251,114.97 is: 346,536.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,062.32 : 627,981.69 = 251,114.97 : x
  2. Step 2: Convert to fraction form
    455,062.32/627,981.69 = 251,114.97/x
  3. Step 3: Cross multiply
    455,062.32x = 627,981.69 × 251,114.97
  4. Step 4: Simplify right side
    455,062.32x = 157,695,603,244.90
  5. Step 5: Solve for x
    x = 157,695,603,244.90/455,062.32
  6. Step 6: Final answer
    x = 346,536.28

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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.