Home / 281,493.09-388,446.03-154,165.95

Finding the Fourth Proportional to 281,493.09, 388,446.03 and 154,165.95

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Solution

The fourth proportional to 281,493.09, 388,446.03 and 154,165.95 is: 212,741.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,493.09 : 388,446.03 = 154,165.95 : x
  2. Step 2: Convert to fraction form
    281,493.09/388,446.03 = 154,165.95/x
  3. Step 3: Cross multiply
    281,493.09x = 388,446.03 × 154,165.95
  4. Step 4: Simplify right side
    281,493.09x = 59,885,151,238.68
  5. Step 5: Solve for x
    x = 59,885,151,238.68/281,493.09
  6. Step 6: Final answer
    x = 212,741.11

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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.