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Finding the Fourth Proportional to 438,673.74, 605,348.09 and 245,043.04

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Solution

The fourth proportional to 438,673.74, 605,348.09 and 245,043.04 is: 338,147.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,673.74 : 605,348.09 = 245,043.04 : x
  2. Step 2: Convert to fraction form
    438,673.74/605,348.09 = 245,043.04/x
  3. Step 3: Cross multiply
    438,673.74x = 605,348.09 × 245,043.04
  4. Step 4: Simplify right side
    438,673.74x = 148,336,336,231.79
  5. Step 5: Solve for x
    x = 148,336,336,231.79/438,673.74
  6. Step 6: Final answer
    x = 338,147.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.