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Finding the Fourth Proportional to 354,069.28, 531,260.90 and 185,549.54

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Solution

The fourth proportional to 354,069.28, 531,260.90 and 185,549.54 is: 278,406.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,069.28 : 531,260.90 = 185,549.54 : x
  2. Step 2: Convert to fraction form
    354,069.28/531,260.90 = 185,549.54/x
  3. Step 3: Cross multiply
    354,069.28x = 531,260.90 × 185,549.54
  4. Step 4: Simplify right side
    354,069.28x = 98,575,213,795.53
  5. Step 5: Solve for x
    x = 98,575,213,795.53/354,069.28
  6. Step 6: Final answer
    x = 278,406.57

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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.