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Finding the Fourth Proportional to 571,991.94, 857,992.77 and 145,528.20

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Solution

The fourth proportional to 571,991.94, 857,992.77 and 145,528.20 is: 218,293.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,991.94 : 857,992.77 = 145,528.20 : x
  2. Step 2: Convert to fraction form
    571,991.94/857,992.77 = 145,528.20/x
  3. Step 3: Cross multiply
    571,991.94x = 857,992.77 × 145,528.20
  4. Step 4: Simplify right side
    571,991.94x = 124,862,143,431.11
  5. Step 5: Solve for x
    x = 124,862,143,431.11/571,991.94
  6. Step 6: Final answer
    x = 218,293.54

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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.