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Finding the Fourth Proportional to 375,042.72, 517,559.58 and 205,287.60

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Solution

The fourth proportional to 375,042.72, 517,559.58 and 205,287.60 is: 283,297.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,042.72 : 517,559.58 = 205,287.60 : x
  2. Step 2: Convert to fraction form
    375,042.72/517,559.58 = 205,287.60/x
  3. Step 3: Cross multiply
    375,042.72x = 517,559.58 × 205,287.60
  4. Step 4: Simplify right side
    375,042.72x = 106,248,564,035.21
  5. Step 5: Solve for x
    x = 106,248,564,035.21/375,042.72
  6. Step 6: Final answer
    x = 283,297.23

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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.