Home / 397,696.32-548,831.04-216,418.08

Finding the Fourth Proportional to 397,696.32, 548,831.04 and 216,418.08

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Solution

The fourth proportional to 397,696.32, 548,831.04 and 216,418.08 is: 298,662.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,696.32 : 548,831.04 = 216,418.08 : x
  2. Step 2: Convert to fraction form
    397,696.32/548,831.04 = 216,418.08/x
  3. Step 3: Cross multiply
    397,696.32x = 548,831.04 × 216,418.08
  4. Step 4: Simplify right side
    397,696.32x = 118,776,959,921.20
  5. Step 5: Solve for x
    x = 118,776,959,921.20/397,696.32
  6. Step 6: Final answer
    x = 298,662.46

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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.