Home / 254,822.56-380,083.81-221,278.84

Finding the Fourth Proportional to 254,822.56, 380,083.81 and 221,278.84

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Solution

The fourth proportional to 254,822.56, 380,083.81 and 221,278.84 is: 330,051.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,822.56 : 380,083.81 = 221,278.84 : x
  2. Step 2: Convert to fraction form
    254,822.56/380,083.81 = 221,278.84/x
  3. Step 3: Cross multiply
    254,822.56x = 380,083.81 × 221,278.84
  4. Step 4: Simplify right side
    254,822.56x = 84,104,503,473.19
  5. Step 5: Solve for x
    x = 84,104,503,473.19/254,822.56
  6. Step 6: Final answer
    x = 330,051.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.