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Finding the Fourth Proportional to 571,957.05, 857,405.83 and 211,927.31

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Solution

The fourth proportional to 571,957.05, 857,405.83 and 211,927.31 is: 317,694.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,957.05 : 857,405.83 = 211,927.31 : x
  2. Step 2: Convert to fraction form
    571,957.05/857,405.83 = 211,927.31/x
  3. Step 3: Cross multiply
    571,957.05x = 857,405.83 × 211,927.31
  4. Step 4: Simplify right side
    571,957.05x = 181,707,707,507.74
  5. Step 5: Solve for x
    x = 181,707,707,507.74/571,957.05
  6. Step 6: Final answer
    x = 317,694.67

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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.