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Finding the Fourth Proportional to 318,796.37, 439,892.48 and 180,953.88

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Solution

The fourth proportional to 318,796.37, 439,892.48 and 180,953.88 is: 249,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,796.37 : 439,892.48 = 180,953.88 : x
  2. Step 2: Convert to fraction form
    318,796.37/439,892.48 = 180,953.88/x
  3. Step 3: Cross multiply
    318,796.37x = 439,892.48 × 180,953.88
  4. Step 4: Simplify right side
    318,796.37x = 79,600,251,491.21
  5. Step 5: Solve for x
    x = 79,600,251,491.21/318,796.37
  6. Step 6: Final answer
    x = 249,689.95

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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.