Home / 221,824.32-332,868.24-81,681.36

Finding the Fourth Proportional to 221,824.32, 332,868.24 and 81,681.36

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Solution

The fourth proportional to 221,824.32, 332,868.24 and 81,681.36 is: 122,570.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,824.32 : 332,868.24 = 81,681.36 : x
  2. Step 2: Convert to fraction form
    221,824.32/332,868.24 = 81,681.36/x
  3. Step 3: Cross multiply
    221,824.32x = 332,868.24 × 81,681.36
  4. Step 4: Simplify right side
    221,824.32x = 27,189,130,544.01
  5. Step 5: Solve for x
    x = 27,189,130,544.01/221,824.32
  6. Step 6: Final answer
    x = 122,570.56

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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.