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Finding the Fourth Proportional to 404,726.75, 607,119.56 and 155,408.75

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Solution

The fourth proportional to 404,726.75, 607,119.56 and 155,408.75 is: 233,124.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,726.75 : 607,119.56 = 155,408.75 : x
  2. Step 2: Convert to fraction form
    404,726.75/607,119.56 = 155,408.75/x
  3. Step 3: Cross multiply
    404,726.75x = 607,119.56 × 155,408.75
  4. Step 4: Simplify right side
    404,726.75x = 94,351,691,920.15
  5. Step 5: Solve for x
    x = 94,351,691,920.15/404,726.75
  6. Step 6: Final answer
    x = 233,124.43

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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.