Home / 281,283.04-388,171.07-153,966.70

Finding the Fourth Proportional to 281,283.04, 388,171.07 and 153,966.70

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Solution

The fourth proportional to 281,283.04, 388,171.07 and 153,966.70 is: 212,474.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,283.04 : 388,171.07 = 153,966.70 : x
  2. Step 2: Convert to fraction form
    281,283.04/388,171.07 = 153,966.70/x
  3. Step 3: Cross multiply
    281,283.04x = 388,171.07 × 153,966.70
  4. Step 4: Simplify right side
    281,283.04x = 59,765,418,683.37
  5. Step 5: Solve for x
    x = 59,765,418,683.37/281,283.04
  6. Step 6: Final answer
    x = 212,474.31

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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.