Home / 299,321.64-448,981.20-121,786.56

Finding the Fourth Proportional to 299,321.64, 448,981.20 and 121,786.56

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Solution

The fourth proportional to 299,321.64, 448,981.20 and 121,786.56 is: 182,679.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,321.64 : 448,981.20 = 121,786.56 : x
  2. Step 2: Convert to fraction form
    299,321.64/448,981.20 = 121,786.56/x
  3. Step 3: Cross multiply
    299,321.64x = 448,981.20 × 121,786.56
  4. Step 4: Simplify right side
    299,321.64x = 54,679,875,852.67
  5. Step 5: Solve for x
    x = 54,679,875,852.67/299,321.64
  6. Step 6: Final answer
    x = 182,679.33

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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.