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Finding the Fourth Proportional to 245,419.20, 367,912.80 and 166,276.80

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Solution

The fourth proportional to 245,419.20, 367,912.80 and 166,276.80 is: 249,268.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,419.20 : 367,912.80 = 166,276.80 : x
  2. Step 2: Convert to fraction form
    245,419.20/367,912.80 = 166,276.80/x
  3. Step 3: Cross multiply
    245,419.20x = 367,912.80 × 166,276.80
  4. Step 4: Simplify right side
    245,419.20x = 61,175,363,063.04
  5. Step 5: Solve for x
    x = 61,175,363,063.04/245,419.20
  6. Step 6: Final answer
    x = 249,268.86

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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.