Home / 281,284.80-388,173.48-153,968.46

Finding the Fourth Proportional to 281,284.80, 388,173.48 and 153,968.46

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Solution

The fourth proportional to 281,284.80, 388,173.48 and 153,968.46 is: 212,476.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,284.80 : 388,173.48 = 153,968.46 : x
  2. Step 2: Convert to fraction form
    281,284.80/388,173.48 = 153,968.46/x
  3. Step 3: Cross multiply
    281,284.80x = 388,173.48 × 153,968.46
  4. Step 4: Simplify right side
    281,284.80x = 59,766,472,928.44
  5. Step 5: Solve for x
    x = 59,766,472,928.44/281,284.80
  6. Step 6: Final answer
    x = 212,476.72

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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.