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Finding the Fourth Proportional to 230,550.62, 318,111.74 and 139,954.28

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Solution

The fourth proportional to 230,550.62, 318,111.74 and 139,954.28 is: 193,107.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,550.62 : 318,111.74 = 139,954.28 : x
  2. Step 2: Convert to fraction form
    230,550.62/318,111.74 = 139,954.28/x
  3. Step 3: Cross multiply
    230,550.62x = 318,111.74 × 139,954.28
  4. Step 4: Simplify right side
    230,550.62x = 44,521,098,831.48
  5. Step 5: Solve for x
    x = 44,521,098,831.48/230,550.62
  6. Step 6: Final answer
    x = 193,107.70

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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.