Home / 306,279.06-422,674.76-170,318.73

Finding the Fourth Proportional to 306,279.06, 422,674.76 and 170,318.73

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Solution

The fourth proportional to 306,279.06, 422,674.76 and 170,318.73 is: 235,045.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,279.06 : 422,674.76 = 170,318.73 : x
  2. Step 2: Convert to fraction form
    306,279.06/422,674.76 = 170,318.73/x
  3. Step 3: Cross multiply
    306,279.06x = 422,674.76 × 170,318.73
  4. Step 4: Simplify right side
    306,279.06x = 71,989,429,379.04
  5. Step 5: Solve for x
    x = 71,989,429,379.04/306,279.06
  6. Step 6: Final answer
    x = 235,045.22

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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.