Home / 281,284.10-388,171.41-153,958.58

Finding the Fourth Proportional to 281,284.10, 388,171.41 and 153,958.58

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Solution

The fourth proportional to 281,284.10, 388,171.41 and 153,958.58 is: 212,462.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,284.10 : 388,171.41 = 153,958.58 : x
  2. Step 2: Convert to fraction form
    281,284.10/388,171.41 = 153,958.58/x
  3. Step 3: Cross multiply
    281,284.10x = 388,171.41 × 153,958.58
  4. Step 4: Simplify right side
    281,284.10x = 59,762,319,080.20
  5. Step 5: Solve for x
    x = 59,762,319,080.20/281,284.10
  6. Step 6: Final answer
    x = 212,462.49

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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.