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Finding the Fourth Proportional to 448,242.89, 618,545.09 and 254,691.34

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Solution

The fourth proportional to 448,242.89, 618,545.09 and 254,691.34 is: 351,456.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,242.89 : 618,545.09 = 254,691.34 : x
  2. Step 2: Convert to fraction form
    448,242.89/618,545.09 = 254,691.34/x
  3. Step 3: Cross multiply
    448,242.89x = 618,545.09 × 254,691.34
  4. Step 4: Simplify right side
    448,242.89x = 157,538,076,912.89
  5. Step 5: Solve for x
    x = 157,538,076,912.89/448,242.89
  6. Step 6: Final answer
    x = 351,456.95

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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.