Home / 306,132.87-422,434.37-170,150.67

Finding the Fourth Proportional to 306,132.87, 422,434.37 and 170,150.67

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Solution

The fourth proportional to 306,132.87, 422,434.37 and 170,150.67 is: 234,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,132.87 : 422,434.37 = 170,150.67 : x
  2. Step 2: Convert to fraction form
    306,132.87/422,434.37 = 170,150.67/x
  3. Step 3: Cross multiply
    306,132.87x = 422,434.37 × 170,150.67
  4. Step 4: Simplify right side
    306,132.87x = 71,877,490,235.77
  5. Step 5: Solve for x
    x = 71,877,490,235.77/306,132.87
  6. Step 6: Final answer
    x = 234,791.81

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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.