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Finding the Fourth Proportional to 350,039.98, 525,087.60 and 172,450.12

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Solution

The fourth proportional to 350,039.98, 525,087.60 and 172,450.12 is: 258,688.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,039.98 : 525,087.60 = 172,450.12 : x
  2. Step 2: Convert to fraction form
    350,039.98/525,087.60 = 172,450.12/x
  3. Step 3: Cross multiply
    350,039.98x = 525,087.60 × 172,450.12
  4. Step 4: Simplify right side
    350,039.98x = 90,551,419,630.51
  5. Step 5: Solve for x
    x = 90,551,419,630.51/350,039.98
  6. Step 6: Final answer
    x = 258,688.79

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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.