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Finding the Fourth Proportional to 455,817.48, 629,014.88 and 251,865.16

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Solution

The fourth proportional to 455,817.48, 629,014.88 and 251,865.16 is: 347,566.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,817.48 : 629,014.88 = 251,865.16 : x
  2. Step 2: Convert to fraction form
    455,817.48/629,014.88 = 251,865.16/x
  3. Step 3: Cross multiply
    455,817.48x = 629,014.88 × 251,865.16
  4. Step 4: Simplify right side
    455,817.48x = 158,426,933,393.58
  5. Step 5: Solve for x
    x = 158,426,933,393.58/455,817.48
  6. Step 6: Final answer
    x = 347,566.60

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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.