Home / 298,922.33-448,490.39-128,072.27

Finding the Fourth Proportional to 298,922.33, 448,490.39 and 128,072.27

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Solution

The fourth proportional to 298,922.33, 448,490.39 and 128,072.27 is: 192,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,922.33 : 448,490.39 = 128,072.27 : x
  2. Step 2: Convert to fraction form
    298,922.33/448,490.39 = 128,072.27/x
  3. Step 3: Cross multiply
    298,922.33x = 448,490.39 × 128,072.27
  4. Step 4: Simplify right side
    298,922.33x = 57,439,182,801.35
  5. Step 5: Solve for x
    x = 57,439,182,801.35/298,922.33
  6. Step 6: Final answer
    x = 192,154.20

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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.