Home / 281,375.28-388,295.46-152,313.12

Finding the Fourth Proportional to 281,375.28, 388,295.46 and 152,313.12

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Solution

The fourth proportional to 281,375.28, 388,295.46 and 152,313.12 is: 210,190.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,375.28 : 388,295.46 = 152,313.12 : x
  2. Step 2: Convert to fraction form
    281,375.28/388,295.46 = 152,313.12/x
  3. Step 3: Cross multiply
    281,375.28x = 388,295.46 × 152,313.12
  4. Step 4: Simplify right side
    281,375.28x = 59,142,492,994.44
  5. Step 5: Solve for x
    x = 59,142,492,994.44/281,375.28
  6. Step 6: Final answer
    x = 210,190.79

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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.