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Finding the Fourth Proportional to 375,379.76, 518,031.58 and 205,613.88

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Solution

The fourth proportional to 375,379.76, 518,031.58 and 205,613.88 is: 283,751.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,379.76 : 518,031.58 = 205,613.88 : x
  2. Step 2: Convert to fraction form
    375,379.76/518,031.58 = 205,613.88/x
  3. Step 3: Cross multiply
    375,379.76x = 518,031.58 × 205,613.88
  4. Step 4: Simplify right side
    375,379.76x = 106,514,483,126.33
  5. Step 5: Solve for x
    x = 106,514,483,126.33/375,379.76
  6. Step 6: Final answer
    x = 283,751.27

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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.