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Finding the Fourth Proportional to 375,602.10, 518,331.35 and 203,519.94

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Solution

The fourth proportional to 375,602.10, 518,331.35 and 203,519.94 is: 280,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,602.10 : 518,331.35 = 203,519.94 : x
  2. Step 2: Convert to fraction form
    375,602.10/518,331.35 = 203,519.94/x
  3. Step 3: Cross multiply
    375,602.10x = 518,331.35 × 203,519.94
  4. Step 4: Simplify right side
    375,602.10x = 105,490,765,252.12
  5. Step 5: Solve for x
    x = 105,490,765,252.12/375,602.10
  6. Step 6: Final answer
    x = 280,857.76

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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.