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Finding the Fourth Proportional to 306,707.96, 423,611.24 and 204,555.92

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Solution

The fourth proportional to 306,707.96, 423,611.24 and 204,555.92 is: 282,523.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,707.96 : 423,611.24 = 204,555.92 : x
  2. Step 2: Convert to fraction form
    306,707.96/423,611.24 = 204,555.92/x
  3. Step 3: Cross multiply
    306,707.96x = 423,611.24 × 204,555.92
  4. Step 4: Simplify right side
    306,707.96x = 86,652,188,490.96
  5. Step 5: Solve for x
    x = 86,652,188,490.96/306,707.96
  6. Step 6: Final answer
    x = 282,523.44

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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.