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Finding the Fourth Proportional to 279,670.18, 419,871.14 and 166,025.46

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Solution

The fourth proportional to 279,670.18, 419,871.14 and 166,025.46 is: 249,255.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,670.18 : 419,871.14 = 166,025.46 : x
  2. Step 2: Convert to fraction form
    279,670.18/419,871.14 = 166,025.46/x
  3. Step 3: Cross multiply
    279,670.18x = 419,871.14 × 166,025.46
  4. Step 4: Simplify right side
    279,670.18x = 69,709,299,159.22
  5. Step 5: Solve for x
    x = 69,709,299,159.22/279,670.18
  6. Step 6: Final answer
    x = 249,255.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.