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Finding the Fourth Proportional to 299,123.40, 448,685.10 and 245,979.30

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Solution

The fourth proportional to 299,123.40, 448,685.10 and 245,979.30 is: 368,968.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,123.40 : 448,685.10 = 245,979.30 : x
  2. Step 2: Convert to fraction form
    299,123.40/448,685.10 = 245,979.30/x
  3. Step 3: Cross multiply
    299,123.40x = 448,685.10 × 245,979.30
  4. Step 4: Simplify right side
    299,123.40x = 110,367,246,818.43
  5. Step 5: Solve for x
    x = 110,367,246,818.43/299,123.40
  6. Step 6: Final answer
    x = 368,968.95

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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.