Home / 217,820.46-300,588.44-121,025.21

Finding the Fourth Proportional to 217,820.46, 300,588.44 and 121,025.21

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Solution

The fourth proportional to 217,820.46, 300,588.44 and 121,025.21 is: 167,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,820.46 : 300,588.44 = 121,025.21 : x
  2. Step 2: Convert to fraction form
    217,820.46/300,588.44 = 121,025.21/x
  3. Step 3: Cross multiply
    217,820.46x = 300,588.44 × 121,025.21
  4. Step 4: Simplify right side
    217,820.46x = 36,378,776,966.50
  5. Step 5: Solve for x
    x = 36,378,776,966.50/217,820.46
  6. Step 6: Final answer
    x = 167,012.67

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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.