Home / 394,946.31-545,024.25-213,657.81

Finding the Fourth Proportional to 394,946.31, 545,024.25 and 213,657.81

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Solution

The fourth proportional to 394,946.31, 545,024.25 and 213,657.81 is: 294,846.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,946.31 : 545,024.25 = 213,657.81 : x
  2. Step 2: Convert to fraction form
    394,946.31/545,024.25 = 213,657.81/x
  3. Step 3: Cross multiply
    394,946.31x = 545,024.25 × 213,657.81
  4. Step 4: Simplify right side
    394,946.31x = 116,448,687,651.89
  5. Step 5: Solve for x
    x = 116,448,687,651.89/394,946.31
  6. Step 6: Final answer
    x = 294,846.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.