Home / 281,534.02-388,517.04-154,214.20

Finding the Fourth Proportional to 281,534.02, 388,517.04 and 154,214.20

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Solution

The fourth proportional to 281,534.02, 388,517.04 and 154,214.20 is: 212,815.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,534.02 : 388,517.04 = 154,214.20 : x
  2. Step 2: Convert to fraction form
    281,534.02/388,517.04 = 154,214.20/x
  3. Step 3: Cross multiply
    281,534.02x = 388,517.04 × 154,214.20
  4. Step 4: Simplify right side
    281,534.02x = 59,914,844,509.97
  5. Step 5: Solve for x
    x = 59,914,844,509.97/281,534.02
  6. Step 6: Final answer
    x = 212,815.65

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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.