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Finding the Fourth Proportional to 455,241.77, 628,233.76 and 251,292.81

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Solution

The fourth proportional to 455,241.77, 628,233.76 and 251,292.81 is: 346,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,241.77 : 628,233.76 = 251,292.81 : x
  2. Step 2: Convert to fraction form
    455,241.77/628,233.76 = 251,292.81/x
  3. Step 3: Cross multiply
    455,241.77x = 628,233.76 × 251,292.81
  4. Step 4: Simplify right side
    455,241.77x = 157,870,629,557.26
  5. Step 5: Solve for x
    x = 157,870,629,557.26/455,241.77
  6. Step 6: Final answer
    x = 346,784.15

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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.