Home / 354,828.60-531,465.30-188,422.20

Finding the Fourth Proportional to 354,828.60, 531,465.30 and 188,422.20

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Solution

The fourth proportional to 354,828.60, 531,465.30 and 188,422.20 is: 282,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,828.60 : 531,465.30 = 188,422.20 : x
  2. Step 2: Convert to fraction form
    354,828.60/531,465.30 = 188,422.20/x
  3. Step 3: Cross multiply
    354,828.60x = 531,465.30 × 188,422.20
  4. Step 4: Simplify right side
    354,828.60x = 100,139,861,049.66
  5. Step 5: Solve for x
    x = 100,139,861,049.66/354,828.60
  6. Step 6: Final answer
    x = 282,220.38

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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.