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Finding the Fourth Proportional to 354,223.71, 531,073.11 and 213,949.53

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Solution

The fourth proportional to 354,223.71, 531,073.11 and 213,949.53 is: 320,765.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,223.71 : 531,073.11 = 213,949.53 : x
  2. Step 2: Convert to fraction form
    354,223.71/531,073.11 = 213,949.53/x
  3. Step 3: Cross multiply
    354,223.71x = 531,073.11 × 213,949.53
  4. Step 4: Simplify right side
    354,223.71x = 113,622,842,280.14
  5. Step 5: Solve for x
    x = 113,622,842,280.14/354,223.71
  6. Step 6: Final answer
    x = 320,765.77

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1.5x scale

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.