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Finding the Fourth Proportional to 397,996.58, 549,057.84 and 268,893.56

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Solution

The fourth proportional to 397,996.58, 549,057.84 and 268,893.56 is: 370,953.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,996.58 : 549,057.84 = 268,893.56 : x
  2. Step 2: Convert to fraction form
    397,996.58/549,057.84 = 268,893.56/x
  3. Step 3: Cross multiply
    397,996.58x = 549,057.84 × 268,893.56
  4. Step 4: Simplify right side
    397,996.58x = 147,638,117,243.51
  5. Step 5: Solve for x
    x = 147,638,117,243.51/397,996.58
  6. Step 6: Final answer
    x = 370,953.23

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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.