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Finding the Fourth Proportional to 350,219.70, 525,135.15 and 139,619.70

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Solution

The fourth proportional to 350,219.70, 525,135.15 and 139,619.70 is: 209,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,219.70 : 525,135.15 = 139,619.70 : x
  2. Step 2: Convert to fraction form
    350,219.70/525,135.15 = 139,619.70/x
  3. Step 3: Cross multiply
    350,219.70x = 525,135.15 × 139,619.70
  4. Step 4: Simplify right side
    350,219.70x = 73,319,212,102.46
  5. Step 5: Solve for x
    x = 73,319,212,102.46/350,219.70
  6. Step 6: Final answer
    x = 209,352.05

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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.