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Finding the Fourth Proportional to 307,831.40, 462,092.70 and 238,020.20

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Solution

The fourth proportional to 307,831.40, 462,092.70 and 238,020.20 is: 357,297.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,831.40 : 462,092.70 = 238,020.20 : x
  2. Step 2: Convert to fraction form
    307,831.40/462,092.70 = 238,020.20/x
  3. Step 3: Cross multiply
    307,831.40x = 462,092.70 × 238,020.20
  4. Step 4: Simplify right side
    307,831.40x = 109,987,396,872.54
  5. Step 5: Solve for x
    x = 109,987,396,872.54/307,831.40
  6. Step 6: Final answer
    x = 357,297.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.