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Finding the Fourth Proportional to 345,998.56, 477,476.48 and 187,022.56

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Solution

The fourth proportional to 345,998.56, 477,476.48 and 187,022.56 is: 258,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,998.56 : 477,476.48 = 187,022.56 : x
  2. Step 2: Convert to fraction form
    345,998.56/477,476.48 = 187,022.56/x
  3. Step 3: Cross multiply
    345,998.56x = 477,476.48 × 187,022.56
  4. Step 4: Simplify right side
    345,998.56x = 89,298,873,629.39
  5. Step 5: Solve for x
    x = 89,298,873,629.39/345,998.56
  6. Step 6: Final answer
    x = 258,090.30

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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.