Home / 265,831.80-398,965.30-263,758.20

Finding the Fourth Proportional to 265,831.80, 398,965.30 and 263,758.20

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Solution

The fourth proportional to 265,831.80, 398,965.30 and 263,758.20 is: 395,853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,831.80 : 398,965.30 = 263,758.20 : x
  2. Step 2: Convert to fraction form
    265,831.80/398,965.30 = 263,758.20/x
  3. Step 3: Cross multiply
    265,831.80x = 398,965.30 × 263,758.20
  4. Step 4: Simplify right side
    265,831.80x = 105,230,369,390.46
  5. Step 5: Solve for x
    x = 105,230,369,390.46/265,831.80
  6. Step 6: Final answer
    x = 395,853.20

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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.