Home / 354,217.76-531,064.20-213,943.58

Finding the Fourth Proportional to 354,217.76, 531,064.20 and 213,943.58

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Solution

The fourth proportional to 354,217.76, 531,064.20 and 213,943.58 is: 320,756.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,217.76 : 531,064.20 = 213,943.58 : x
  2. Step 2: Convert to fraction form
    354,217.76/531,064.20 = 213,943.58/x
  3. Step 3: Cross multiply
    354,217.76x = 531,064.20 × 213,943.58
  4. Step 4: Simplify right side
    354,217.76x = 113,617,775,092.86
  5. Step 5: Solve for x
    x = 113,617,775,092.86/354,217.76
  6. Step 6: Final answer
    x = 320,756.86

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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.