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Finding the Fourth Proportional to 299,409.70, 448,458.45 and 260,043.70

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Solution

The fourth proportional to 299,409.70, 448,458.45 and 260,043.70 is: 389,495.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,409.70 : 448,458.45 = 260,043.70 : x
  2. Step 2: Convert to fraction form
    299,409.70/448,458.45 = 260,043.70/x
  3. Step 3: Cross multiply
    299,409.70x = 448,458.45 × 260,043.70
  4. Step 4: Simplify right side
    299,409.70x = 116,618,794,634.27
  5. Step 5: Solve for x
    x = 116,618,794,634.27/299,409.70
  6. Step 6: Final answer
    x = 389,495.71

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1.5x scale

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.