Home / 354,834.60-531,474.30-188,428.20

Finding the Fourth Proportional to 354,834.60, 531,474.30 and 188,428.20

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Solution

The fourth proportional to 354,834.60, 531,474.30 and 188,428.20 is: 282,229.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,834.60 : 531,474.30 = 188,428.20 : x
  2. Step 2: Convert to fraction form
    354,834.60/531,474.30 = 188,428.20/x
  3. Step 3: Cross multiply
    354,834.60x = 531,474.30 × 188,428.20
  4. Step 4: Simplify right side
    354,834.60x = 100,144,745,695.26
  5. Step 5: Solve for x
    x = 100,144,745,695.26/354,834.60
  6. Step 6: Final answer
    x = 282,229.37

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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.