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Finding the Fourth Proportional to 448,107.56, 618,194.13 and 266,717.78

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Solution

The fourth proportional to 448,107.56, 618,194.13 and 266,717.78 is: 367,954.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,107.56 : 618,194.13 = 266,717.78 : x
  2. Step 2: Convert to fraction form
    448,107.56/618,194.13 = 266,717.78/x
  3. Step 3: Cross multiply
    448,107.56x = 618,194.13 × 266,717.78
  4. Step 4: Simplify right side
    448,107.56x = 164,883,365,962.63
  5. Step 5: Solve for x
    x = 164,883,365,962.63/448,107.56
  6. Step 6: Final answer
    x = 367,954.89

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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.