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Finding the Fourth Proportional to 455,529.34, 628,623.34 and 251,575.26

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Solution

The fourth proportional to 455,529.34, 628,623.34 and 251,575.26 is: 347,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,529.34 : 628,623.34 = 251,575.26 : x
  2. Step 2: Convert to fraction form
    455,529.34/628,623.34 = 251,575.26/x
  3. Step 3: Cross multiply
    455,529.34x = 628,623.34 × 251,575.26
  4. Step 4: Simplify right side
    455,529.34x = 158,146,080,202.57
  5. Step 5: Solve for x
    x = 158,146,080,202.57/455,529.34
  6. Step 6: Final answer
    x = 347,169.91

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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.