Home / 211,370.97-291,360.60-160,178.78

Finding the Fourth Proportional to 211,370.97, 291,360.60 and 160,178.78

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Solution

The fourth proportional to 211,370.97, 291,360.60 and 160,178.78 is: 220,795.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,370.97 : 291,360.60 = 160,178.78 : x
  2. Step 2: Convert to fraction form
    211,370.97/291,360.60 = 160,178.78/x
  3. Step 3: Cross multiply
    211,370.97x = 291,360.60 × 160,178.78
  4. Step 4: Simplify right side
    211,370.97x = 46,669,783,991.27
  5. Step 5: Solve for x
    x = 46,669,783,991.27/211,370.97
  6. Step 6: Final answer
    x = 220,795.62

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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.