Home / 545,326.20-818,000.64-145,966.50

Finding the Fourth Proportional to 545,326.20, 818,000.64 and 145,966.50

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Solution

The fourth proportional to 545,326.20, 818,000.64 and 145,966.50 is: 218,952.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,326.20 : 818,000.64 = 145,966.50 : x
  2. Step 2: Convert to fraction form
    545,326.20/818,000.64 = 145,966.50/x
  3. Step 3: Cross multiply
    545,326.20x = 818,000.64 × 145,966.50
  4. Step 4: Simplify right side
    545,326.20x = 119,400,690,418.56
  5. Step 5: Solve for x
    x = 119,400,690,418.56/545,326.20
  6. Step 6: Final answer
    x = 218,952.79

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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.