Home / 216,249.35-298,320.57-135,636.53

Finding the Fourth Proportional to 216,249.35, 298,320.57 and 135,636.53

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Solution

The fourth proportional to 216,249.35, 298,320.57 and 135,636.53 is: 187,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,249.35 : 298,320.57 = 135,636.53 : x
  2. Step 2: Convert to fraction form
    216,249.35/298,320.57 = 135,636.53/x
  3. Step 3: Cross multiply
    216,249.35x = 298,320.57 × 135,636.53
  4. Step 4: Simplify right side
    216,249.35x = 40,463,165,450.82
  5. Step 5: Solve for x
    x = 40,463,165,450.82/216,249.35
  6. Step 6: Final answer
    x = 187,113.47

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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.