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Finding the Fourth Proportional to 571,968.81, 857,958.11 and 145,505.03

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Solution

The fourth proportional to 571,968.81, 857,958.11 and 145,505.03 is: 218,258.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,968.81 : 857,958.11 = 145,505.03 : x
  2. Step 2: Convert to fraction form
    571,968.81/857,958.11 = 145,505.03/x
  3. Step 3: Cross multiply
    571,968.81x = 857,958.11 × 145,505.03
  4. Step 4: Simplify right side
    571,968.81x = 124,837,216,062.62
  5. Step 5: Solve for x
    x = 124,837,216,062.62/571,968.81
  6. Step 6: Final answer
    x = 218,258.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.