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Finding the Fourth Proportional to 286,556.34, 395,429.67 and 159,224.34

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Solution

The fourth proportional to 286,556.34, 395,429.67 and 159,224.34 is: 219,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,556.34 : 395,429.67 = 159,224.34 : x
  2. Step 2: Convert to fraction form
    286,556.34/395,429.67 = 159,224.34/x
  3. Step 3: Cross multiply
    286,556.34x = 395,429.67 × 159,224.34
  4. Step 4: Simplify right side
    286,556.34x = 62,962,028,222.17
  5. Step 5: Solve for x
    x = 62,962,028,222.17/286,556.34
  6. Step 6: Final answer
    x = 219,719.54

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1.5x scale

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.