Home / 221,003.21-304,986.53-125,510.60

Finding the Fourth Proportional to 221,003.21, 304,986.53 and 125,510.60

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Solution

The fourth proportional to 221,003.21, 304,986.53 and 125,510.60 is: 173,205.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,003.21 : 304,986.53 = 125,510.60 : x
  2. Step 2: Convert to fraction form
    221,003.21/304,986.53 = 125,510.60/x
  3. Step 3: Cross multiply
    221,003.21x = 304,986.53 × 125,510.60
  4. Step 4: Simplify right side
    221,003.21x = 38,279,043,448.46
  5. Step 5: Solve for x
    x = 38,279,043,448.46/221,003.21
  6. Step 6: Final answer
    x = 173,205.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.