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Finding the Fourth Proportional to 350,115.88, 525,173.84 and 279,665.32

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Solution

The fourth proportional to 350,115.88, 525,173.84 and 279,665.32 is: 419,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,115.88 : 525,173.84 = 279,665.32 : x
  2. Step 2: Convert to fraction form
    350,115.88/525,173.84 = 279,665.32/x
  3. Step 3: Cross multiply
    350,115.88x = 525,173.84 × 279,665.32
  4. Step 4: Simplify right side
    350,115.88x = 146,872,910,019.23
  5. Step 5: Solve for x
    x = 146,872,910,019.23/350,115.88
  6. Step 6: Final answer
    x = 419,498.00

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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.