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Finding the Fourth Proportional to 306,707.21, 423,610.21 and 204,555.17

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Solution

The fourth proportional to 306,707.21, 423,610.21 and 204,555.17 is: 282,522.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,707.21 : 423,610.21 = 204,555.17 : x
  2. Step 2: Convert to fraction form
    306,707.21/423,610.21 = 204,555.17/x
  3. Step 3: Cross multiply
    306,707.21x = 423,610.21 × 204,555.17
  4. Step 4: Simplify right side
    306,707.21x = 86,651,658,684.38
  5. Step 5: Solve for x
    x = 86,651,658,684.38/306,707.21
  6. Step 6: Final answer
    x = 282,522.41

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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.