Home / 281,828.24-388,918.50-154,504.70

Finding the Fourth Proportional to 281,828.24, 388,918.50 and 154,504.70

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Solution

The fourth proportional to 281,828.24, 388,918.50 and 154,504.70 is: 213,214.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,828.24 : 388,918.50 = 154,504.70 : x
  2. Step 2: Convert to fraction form
    281,828.24/388,918.50 = 154,504.70/x
  3. Step 3: Cross multiply
    281,828.24x = 388,918.50 × 154,504.70
  4. Step 4: Simplify right side
    281,828.24x = 60,089,736,166.95
  5. Step 5: Solve for x
    x = 60,089,736,166.95/281,828.24
  6. Step 6: Final answer
    x = 213,214.03

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1.5x scale

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.