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Finding the Fourth Proportional to 306,080.70, 459,121.05 and 166,112.70

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Solution

The fourth proportional to 306,080.70, 459,121.05 and 166,112.70 is: 249,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,080.70 : 459,121.05 = 166,112.70 : x
  2. Step 2: Convert to fraction form
    306,080.70/459,121.05 = 166,112.70/x
  3. Step 3: Cross multiply
    306,080.70x = 459,121.05 × 166,112.70
  4. Step 4: Simplify right side
    306,080.70x = 76,265,837,242.34
  5. Step 5: Solve for x
    x = 76,265,837,242.34/306,080.70
  6. Step 6: Final answer
    x = 249,169.05

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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.