Home / 386,969.80-534,031.69-214,890.65

Finding the Fourth Proportional to 386,969.80, 534,031.69 and 214,890.65

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Solution

The fourth proportional to 386,969.80, 534,031.69 and 214,890.65 is: 296,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,969.80 : 534,031.69 = 214,890.65 : x
  2. Step 2: Convert to fraction form
    386,969.80/534,031.69 = 214,890.65/x
  3. Step 3: Cross multiply
    386,969.80x = 534,031.69 × 214,890.65
  4. Step 4: Simplify right side
    386,969.80x = 114,758,416,984.70
  5. Step 5: Solve for x
    x = 114,758,416,984.70/386,969.80
  6. Step 6: Final answer
    x = 296,556.52

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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.