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Finding the Fourth Proportional to 455,282.29, 628,324.32 and 251,372.35

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Solution

The fourth proportional to 455,282.29, 628,324.32 and 251,372.35 is: 346,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,282.29 : 628,324.32 = 251,372.35 : x
  2. Step 2: Convert to fraction form
    455,282.29/628,324.32 = 251,372.35/x
  3. Step 3: Cross multiply
    455,282.29x = 628,324.32 × 251,372.35
  4. Step 4: Simplify right side
    455,282.29x = 157,943,360,880.55
  5. Step 5: Solve for x
    x = 157,943,360,880.55/455,282.29
  6. Step 6: Final answer
    x = 346,913.03

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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.