Home / 394,931.84-545,006.10-213,643.73

Finding the Fourth Proportional to 394,931.84, 545,006.10 and 213,643.73

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Solution

The fourth proportional to 394,931.84, 545,006.10 and 213,643.73 is: 294,828.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,931.84 : 545,006.10 = 213,643.73 : x
  2. Step 2: Convert to fraction form
    394,931.84/545,006.10 = 213,643.73/x
  3. Step 3: Cross multiply
    394,931.84x = 545,006.10 × 213,643.73
  4. Step 4: Simplify right side
    394,931.84x = 116,437,136,076.75
  5. Step 5: Solve for x
    x = 116,437,136,076.75/394,931.84
  6. Step 6: Final answer
    x = 294,828.43

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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.