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Finding the Fourth Proportional to 455,241.61, 628,233.54 and 251,292.65

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Solution

The fourth proportional to 455,241.61, 628,233.54 and 251,292.65 is: 346,783.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,241.61 : 628,233.54 = 251,292.65 : x
  2. Step 2: Convert to fraction form
    455,241.61/628,233.54 = 251,292.65/x
  3. Step 3: Cross multiply
    455,241.61x = 628,233.54 × 251,292.65
  4. Step 4: Simplify right side
    455,241.61x = 157,870,469,829.02
  5. Step 5: Solve for x
    x = 157,870,469,829.02/455,241.61
  6. Step 6: Final answer
    x = 346,783.92

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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.