Home / 545,334.18-818,342.28-208,403.61

Finding the Fourth Proportional to 545,334.18, 818,342.28 and 208,403.61

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Solution

The fourth proportional to 545,334.18, 818,342.28 and 208,403.61 is: 312,735.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,334.18 : 818,342.28 = 208,403.61 : x
  2. Step 2: Convert to fraction form
    545,334.18/818,342.28 = 208,403.61/x
  3. Step 3: Cross multiply
    545,334.18x = 818,342.28 × 208,403.61
  4. Step 4: Simplify right side
    545,334.18x = 170,545,485,367.63
  5. Step 5: Solve for x
    x = 170,545,485,367.63/545,334.18
  6. Step 6: Final answer
    x = 312,735.73

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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.