Home / 281,266.90-388,150.59-153,943.54

Finding the Fourth Proportional to 281,266.90, 388,150.59 and 153,943.54

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Solution

The fourth proportional to 281,266.90, 388,150.59 and 153,943.54 is: 212,443.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,266.90 : 388,150.59 = 153,943.54 : x
  2. Step 2: Convert to fraction form
    281,266.90/388,150.59 = 153,943.54/x
  3. Step 3: Cross multiply
    281,266.90x = 388,150.59 × 153,943.54
  4. Step 4: Simplify right side
    281,266.90x = 59,753,275,877.69
  5. Step 5: Solve for x
    x = 59,753,275,877.69/281,266.90
  6. Step 6: Final answer
    x = 212,443.33

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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.