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Finding the Fourth Proportional to 284,674.20, 426,719.70 and 166,284.60

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Solution

The fourth proportional to 284,674.20, 426,719.70 and 166,284.60 is: 249,256.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,674.20 : 426,719.70 = 166,284.60 : x
  2. Step 2: Convert to fraction form
    284,674.20/426,719.70 = 166,284.60/x
  3. Step 3: Cross multiply
    284,674.20x = 426,719.70 × 166,284.60
  4. Step 4: Simplify right side
    284,674.20x = 70,956,914,626.62
  5. Step 5: Solve for x
    x = 70,956,914,626.62/284,674.20
  6. Step 6: Final answer
    x = 249,256.57

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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.