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Finding the Fourth Proportional to 351,142.35, 484,572.94 and 189,993.79

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Solution

The fourth proportional to 351,142.35, 484,572.94 and 189,993.79 is: 262,189.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,142.35 : 484,572.94 = 189,993.79 : x
  2. Step 2: Convert to fraction form
    351,142.35/484,572.94 = 189,993.79/x
  3. Step 3: Cross multiply
    351,142.35x = 484,572.94 × 189,993.79
  4. Step 4: Simplify right side
    351,142.35x = 92,065,849,402.04
  5. Step 5: Solve for x
    x = 92,065,849,402.04/351,142.35
  6. Step 6: Final answer
    x = 262,189.53

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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.