Home / 286,738.84-395,720.40-172,022.46

Finding the Fourth Proportional to 286,738.84, 395,720.40 and 172,022.46

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Solution

The fourth proportional to 286,738.84, 395,720.40 and 172,022.46 is: 237,403.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,738.84 : 395,720.40 = 172,022.46 : x
  2. Step 2: Convert to fraction form
    286,738.84/395,720.40 = 172,022.46/x
  3. Step 3: Cross multiply
    286,738.84x = 395,720.40 × 172,022.46
  4. Step 4: Simplify right side
    286,738.84x = 68,072,796,680.18
  5. Step 5: Solve for x
    x = 68,072,796,680.18/286,738.84
  6. Step 6: Final answer
    x = 237,403.47

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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.