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Finding the Fourth Proportional to 216,866.84, 299,249.64 and 120,063.33

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Solution

The fourth proportional to 216,866.84, 299,249.64 and 120,063.33 is: 165,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,866.84 : 299,249.64 = 120,063.33 : x
  2. Step 2: Convert to fraction form
    216,866.84/299,249.64 = 120,063.33/x
  3. Step 3: Cross multiply
    216,866.84x = 299,249.64 × 120,063.33
  4. Step 4: Simplify right side
    216,866.84x = 35,928,908,279.70
  5. Step 5: Solve for x
    x = 35,928,908,279.70/216,866.84
  6. Step 6: Final answer
    x = 165,672.67

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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.