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Finding the Fourth Proportional to 448,086.17, 618,334.47 and 254,489.09

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Solution

The fourth proportional to 448,086.17, 618,334.47 and 254,489.09 is: 351,181.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,086.17 : 618,334.47 = 254,489.09 : x
  2. Step 2: Convert to fraction form
    448,086.17/618,334.47 = 254,489.09/x
  3. Step 3: Cross multiply
    448,086.17x = 618,334.47 × 254,489.09
  4. Step 4: Simplify right side
    448,086.17x = 157,359,373,494.26
  5. Step 5: Solve for x
    x = 157,359,373,494.26/448,086.17
  6. Step 6: Final answer
    x = 351,181.06

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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.