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Finding the Fourth Proportional to 659,261.25, 988,930.15 and 254,455.71

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Solution

The fourth proportional to 659,261.25, 988,930.15 and 254,455.71 is: 381,698.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,261.25 : 988,930.15 = 254,455.71 : x
  2. Step 2: Convert to fraction form
    659,261.25/988,930.15 = 254,455.71/x
  3. Step 3: Cross multiply
    659,261.25x = 988,930.15 × 254,455.71
  4. Step 4: Simplify right side
    659,261.25x = 251,638,922,186.38
  5. Step 5: Solve for x
    x = 251,638,922,186.38/659,261.25
  6. Step 6: Final answer
    x = 381,698.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.