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Finding the Fourth Proportional to 341,323.20, 511,831.20 and 130,891.20

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Solution

The fourth proportional to 341,323.20, 511,831.20 and 130,891.20 is: 196,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,323.20 : 511,831.20 = 130,891.20 : x
  2. Step 2: Convert to fraction form
    341,323.20/511,831.20 = 130,891.20/x
  3. Step 3: Cross multiply
    341,323.20x = 511,831.20 × 130,891.20
  4. Step 4: Simplify right side
    341,323.20x = 66,994,199,965.44
  5. Step 5: Solve for x
    x = 66,994,199,965.44/341,323.20
  6. Step 6: Final answer
    x = 196,277.90

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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.