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Finding the Fourth Proportional to 299,240.01, 448,859.88 and 128,424.69

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Solution

The fourth proportional to 299,240.01, 448,859.88 and 128,424.69 is: 192,636.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,240.01 : 448,859.88 = 128,424.69 : x
  2. Step 2: Convert to fraction form
    299,240.01/448,859.88 = 128,424.69/x
  3. Step 3: Cross multiply
    299,240.01x = 448,859.88 × 128,424.69
  4. Step 4: Simplify right side
    299,240.01x = 57,644,690,942.44
  5. Step 5: Solve for x
    x = 57,644,690,942.44/299,240.01
  6. Step 6: Final answer
    x = 192,636.98

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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.