Home / 215,246.40-322,831.20-136,219.20

Finding the Fourth Proportional to 215,246.40, 322,831.20 and 136,219.20

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Solution

The fourth proportional to 215,246.40, 322,831.20 and 136,219.20 is: 204,304.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,246.40 : 322,831.20 = 136,219.20 : x
  2. Step 2: Convert to fraction form
    215,246.40/322,831.20 = 136,219.20/x
  3. Step 3: Cross multiply
    215,246.40x = 322,831.20 × 136,219.20
  4. Step 4: Simplify right side
    215,246.40x = 43,975,807,799.04
  5. Step 5: Solve for x
    x = 43,975,807,799.04/215,246.40
  6. Step 6: Final answer
    x = 204,304.50

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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.