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Finding the Fourth Proportional to 307,403, 424,566.06 and 206,626.04

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Solution

The fourth proportional to 307,403, 424,566.06 and 206,626.04 is: 285,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,403 : 424,566.06 = 206,626.04 : x
  2. Step 2: Convert to fraction form
    307,403/424,566.06 = 206,626.04/x
  3. Step 3: Cross multiply
    307,403x = 424,566.06 × 206,626.04
  4. Step 4: Simplify right side
    307,403x = 87,726,403,696.20
  5. Step 5: Solve for x
    x = 87,726,403,696.20/307,403
  6. Step 6: Final answer
    x = 285,379.14

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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.