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Finding the Fourth Proportional to 344,376.84, 515,054.42 and 306,691.84

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Solution

The fourth proportional to 344,376.84, 515,054.42 and 306,691.84 is: 458,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,376.84 : 515,054.42 = 306,691.84 : x
  2. Step 2: Convert to fraction form
    344,376.84/515,054.42 = 306,691.84/x
  3. Step 3: Cross multiply
    344,376.84x = 515,054.42 × 306,691.84
  4. Step 4: Simplify right side
    344,376.84x = 157,962,987,769.93
  5. Step 5: Solve for x
    x = 157,962,987,769.93/344,376.84
  6. Step 6: Final answer
    x = 458,692.25

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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.