Home / 217,609.43-300,224.01-142,201.67

Finding the Fourth Proportional to 217,609.43, 300,224.01 and 142,201.67

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Solution

The fourth proportional to 217,609.43, 300,224.01 and 142,201.67 is: 196,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,609.43 : 300,224.01 = 142,201.67 : x
  2. Step 2: Convert to fraction form
    217,609.43/300,224.01 = 142,201.67/x
  3. Step 3: Cross multiply
    217,609.43x = 300,224.01 × 142,201.67
  4. Step 4: Simplify right side
    217,609.43x = 42,692,354,094.98
  5. Step 5: Solve for x
    x = 42,692,354,094.98/217,609.43
  6. Step 6: Final answer
    x = 196,187.98

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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.