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Finding the Fourth Proportional to 350,530.80, 525,993 and 140,185.12

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Solution

The fourth proportional to 350,530.80, 525,993 and 140,185.12 is: 210,356.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,530.80 : 525,993 = 140,185.12 : x
  2. Step 2: Convert to fraction form
    350,530.80/525,993 = 140,185.12/x
  3. Step 3: Cross multiply
    350,530.80x = 525,993 × 140,185.12
  4. Step 4: Simplify right side
    350,530.80x = 73,736,391,824.16
  5. Step 5: Solve for x
    x = 73,736,391,824.16/350,530.80
  6. Step 6: Final answer
    x = 210,356.38

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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.