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Finding the Fourth Proportional to 455,506.56, 628,607.52 and 251,568

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Solution

The fourth proportional to 455,506.56, 628,607.52 and 251,568 is: 347,168.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,506.56 : 628,607.52 = 251,568 : x
  2. Step 2: Convert to fraction form
    455,506.56/628,607.52 = 251,568/x
  3. Step 3: Cross multiply
    455,506.56x = 628,607.52 × 251,568
  4. Step 4: Simplify right side
    455,506.56x = 158,137,536,591.36
  5. Step 5: Solve for x
    x = 158,137,536,591.36/455,506.56
  6. Step 6: Final answer
    x = 347,168.52

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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.