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Finding the Fourth Proportional to 380,796.62, 525,557.22 and 243,035

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Solution

The fourth proportional to 380,796.62, 525,557.22 and 243,035 is: 335,425.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,796.62 : 525,557.22 = 243,035 : x
  2. Step 2: Convert to fraction form
    380,796.62/525,557.22 = 243,035/x
  3. Step 3: Cross multiply
    380,796.62x = 525,557.22 × 243,035
  4. Step 4: Simplify right side
    380,796.62x = 127,728,798,962.70
  5. Step 5: Solve for x
    x = 127,728,798,962.70/380,796.62
  6. Step 6: Final answer
    x = 335,425.24

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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.