Home / 215,755.84-321,986.21-192,136.24

Finding the Fourth Proportional to 215,755.84, 321,986.21 and 192,136.24

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Solution

The fourth proportional to 215,755.84, 321,986.21 and 192,136.24 is: 286,737.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,755.84 : 321,986.21 = 192,136.24 : x
  2. Step 2: Convert to fraction form
    215,755.84/321,986.21 = 192,136.24/x
  3. Step 3: Cross multiply
    215,755.84x = 321,986.21 × 192,136.24
  4. Step 4: Simplify right side
    215,755.84x = 61,865,219,721.25
  5. Step 5: Solve for x
    x = 61,865,219,721.25/215,755.84
  6. Step 6: Final answer
    x = 286,737.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.