Home / 281,415.24-388,390.55-166,684.82

Finding the Fourth Proportional to 281,415.24, 388,390.55 and 166,684.82

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Solution

The fourth proportional to 281,415.24, 388,390.55 and 166,684.82 is: 230,047.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,415.24 : 388,390.55 = 166,684.82 : x
  2. Step 2: Convert to fraction form
    281,415.24/388,390.55 = 166,684.82/x
  3. Step 3: Cross multiply
    281,415.24x = 388,390.55 × 166,684.82
  4. Step 4: Simplify right side
    281,415.24x = 64,738,806,141.07
  5. Step 5: Solve for x
    x = 64,738,806,141.07/281,415.24
  6. Step 6: Final answer
    x = 230,047.26

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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.