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Finding the Fourth Proportional to 448,105.56, 618,191.37 and 266,715.78

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Solution

The fourth proportional to 448,105.56, 618,191.37 and 266,715.78 is: 367,952.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,105.56 : 618,191.37 = 266,715.78 : x
  2. Step 2: Convert to fraction form
    448,105.56/618,191.37 = 266,715.78/x
  3. Step 3: Cross multiply
    448,105.56x = 618,191.37 × 266,715.78
  4. Step 4: Simplify right side
    448,105.56x = 164,881,393,438.82
  5. Step 5: Solve for x
    x = 164,881,393,438.82/448,105.56
  6. Step 6: Final answer
    x = 367,952.13

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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.