Home / 221,617.47-307,896.84-218,960.27

Finding the Fourth Proportional to 221,617.47, 307,896.84 and 218,960.27

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Solution

The fourth proportional to 221,617.47, 307,896.84 and 218,960.27 is: 304,205.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,617.47 : 307,896.84 = 218,960.27 : x
  2. Step 2: Convert to fraction form
    221,617.47/307,896.84 = 218,960.27/x
  3. Step 3: Cross multiply
    221,617.47x = 307,896.84 × 218,960.27
  4. Step 4: Simplify right side
    221,617.47x = 67,417,172,857.96
  5. Step 5: Solve for x
    x = 67,417,172,857.96/221,617.47
  6. Step 6: Final answer
    x = 304,205.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.