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Finding the Fourth Proportional to 615,104.22, 922,791.75 and 188,698.74

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Solution

The fourth proportional to 615,104.22, 922,791.75 and 188,698.74 is: 283,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,104.22 : 922,791.75 = 188,698.74 : x
  2. Step 2: Convert to fraction form
    615,104.22/922,791.75 = 188,698.74/x
  3. Step 3: Cross multiply
    615,104.22x = 922,791.75 × 188,698.74
  4. Step 4: Simplify right side
    615,104.22x = 174,129,640,507.40
  5. Step 5: Solve for x
    x = 174,129,640,507.40/615,104.22
  6. Step 6: Final answer
    x = 283,089.65

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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.