Home / 281,173.14-388,002.69-153,851.22

Finding the Fourth Proportional to 281,173.14, 388,002.69 and 153,851.22

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Solution

The fourth proportional to 281,173.14, 388,002.69 and 153,851.22 is: 212,305.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,173.14 : 388,002.69 = 153,851.22 : x
  2. Step 2: Convert to fraction form
    281,173.14/388,002.69 = 153,851.22/x
  3. Step 3: Cross multiply
    281,173.14x = 388,002.69 × 153,851.22
  4. Step 4: Simplify right side
    281,173.14x = 59,694,687,219.78
  5. Step 5: Solve for x
    x = 59,694,687,219.78/281,173.14
  6. Step 6: Final answer
    x = 212,305.80

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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.