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Finding the Fourth Proportional to 455,854.15, 629,116.59 and 251,944.89

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Solution

The fourth proportional to 455,854.15, 629,116.59 and 251,944.89 is: 347,704.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,854.15 : 629,116.59 = 251,944.89 : x
  2. Step 2: Convert to fraction form
    455,854.15/629,116.59 = 251,944.89/x
  3. Step 3: Cross multiply
    455,854.15x = 629,116.59 × 251,944.89
  4. Step 4: Simplify right side
    455,854.15x = 158,502,710,064.73
  5. Step 5: Solve for x
    x = 158,502,710,064.73/455,854.15
  6. Step 6: Final answer
    x = 347,704.87

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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.