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Finding the Fourth Proportional to 222,812.32, 307,549.84 and 143,324.32

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Solution

The fourth proportional to 222,812.32, 307,549.84 and 143,324.32 is: 197,831.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,812.32 : 307,549.84 = 143,324.32 : x
  2. Step 2: Convert to fraction form
    222,812.32/307,549.84 = 143,324.32/x
  3. Step 3: Cross multiply
    222,812.32x = 307,549.84 × 143,324.32
  4. Step 4: Simplify right side
    222,812.32x = 44,079,371,684.11
  5. Step 5: Solve for x
    x = 44,079,371,684.11/222,812.32
  6. Step 6: Final answer
    x = 197,831.84

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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.