Home / 394,982.25-545,075.87-216,134.25

Finding the Fourth Proportional to 394,982.25, 545,075.87 and 216,134.25

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Solution

The fourth proportional to 394,982.25, 545,075.87 and 216,134.25 is: 298,265.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,982.25 : 545,075.87 = 216,134.25 : x
  2. Step 2: Convert to fraction form
    394,982.25/545,075.87 = 216,134.25/x
  3. Step 3: Cross multiply
    394,982.25x = 545,075.87 × 216,134.25
  4. Step 4: Simplify right side
    394,982.25x = 117,809,564,355.55
  5. Step 5: Solve for x
    x = 117,809,564,355.55/394,982.25
  6. Step 6: Final answer
    x = 298,265.46

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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.