Home / 281,619.80-388,636.19-152,559.60

Finding the Fourth Proportional to 281,619.80, 388,636.19 and 152,559.60

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Solution

The fourth proportional to 281,619.80, 388,636.19 and 152,559.60 is: 210,532.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,619.80 : 388,636.19 = 152,559.60 : x
  2. Step 2: Convert to fraction form
    281,619.80/388,636.19 = 152,559.60/x
  3. Step 3: Cross multiply
    281,619.80x = 388,636.19 × 152,559.60
  4. Step 4: Simplify right side
    281,619.80x = 59,290,178,985.95
  5. Step 5: Solve for x
    x = 59,290,178,985.95/281,619.80
  6. Step 6: Final answer
    x = 210,532.71

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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.