Home / 217,427.05-300,051.81-120,632.69

Finding the Fourth Proportional to 217,427.05, 300,051.81 and 120,632.69

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Solution

The fourth proportional to 217,427.05, 300,051.81 and 120,632.69 is: 166,474.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,427.05 : 300,051.81 = 120,632.69 : x
  2. Step 2: Convert to fraction form
    217,427.05/300,051.81 = 120,632.69/x
  3. Step 3: Cross multiply
    217,427.05x = 300,051.81 × 120,632.69
  4. Step 4: Simplify right side
    217,427.05x = 36,196,057,729.80
  5. Step 5: Solve for x
    x = 36,196,057,729.80/217,427.05
  6. Step 6: Final answer
    x = 166,474.49

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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.