Home / 381,746.25-526,831.70-211,991.31

Finding the Fourth Proportional to 381,746.25, 526,831.70 and 211,991.31

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Solution

The fourth proportional to 381,746.25, 526,831.70 and 211,991.31 is: 292,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,746.25 : 526,831.70 = 211,991.31 : x
  2. Step 2: Convert to fraction form
    381,746.25/526,831.70 = 211,991.31/x
  3. Step 3: Cross multiply
    381,746.25x = 526,831.70 × 211,991.31
  4. Step 4: Simplify right side
    381,746.25x = 111,683,741,172.57
  5. Step 5: Solve for x
    x = 111,683,741,172.57/381,746.25
  6. Step 6: Final answer
    x = 292,560.15

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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.