Home / 394,941.84-545,017.20-213,653.04

Finding the Fourth Proportional to 394,941.84, 545,017.20 and 213,653.04

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Solution

The fourth proportional to 394,941.84, 545,017.20 and 213,653.04 is: 294,839.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,941.84 : 545,017.20 = 213,653.04 : x
  2. Step 2: Convert to fraction form
    394,941.84/545,017.20 = 213,653.04/x
  3. Step 3: Cross multiply
    394,941.84x = 545,017.20 × 213,653.04
  4. Step 4: Simplify right side
    394,941.84x = 116,444,581,632.29
  5. Step 5: Solve for x
    x = 116,444,581,632.29/394,941.84
  6. Step 6: Final answer
    x = 294,839.82

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1.5x scale

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.