Home / 261,825.21-361,359.83-154,407.06

Finding the Fourth Proportional to 261,825.21, 361,359.83 and 154,407.06

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Solution

The fourth proportional to 261,825.21, 361,359.83 and 154,407.06 is: 213,105.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,825.21 : 361,359.83 = 154,407.06 : x
  2. Step 2: Convert to fraction form
    261,825.21/361,359.83 = 154,407.06/x
  3. Step 3: Cross multiply
    261,825.21x = 361,359.83 × 154,407.06
  4. Step 4: Simplify right side
    261,825.21x = 55,796,509,338.42
  5. Step 5: Solve for x
    x = 55,796,509,338.42/261,825.21
  6. Step 6: Final answer
    x = 213,105.95

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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.