Home / 281,534.69-388,518.03-154,212.41

Finding the Fourth Proportional to 281,534.69, 388,518.03 and 154,212.41

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Solution

The fourth proportional to 281,534.69, 388,518.03 and 154,212.41 is: 212,813.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,534.69 : 388,518.03 = 154,212.41 : x
  2. Step 2: Convert to fraction form
    281,534.69/388,518.03 = 154,212.41/x
  3. Step 3: Cross multiply
    281,534.69x = 388,518.03 × 154,212.41
  4. Step 4: Simplify right side
    281,534.69x = 59,914,299,792.16
  5. Step 5: Solve for x
    x = 59,914,299,792.16/281,534.69
  6. Step 6: Final answer
    x = 212,813.21

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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.