Home / 281,541.15-388,531.76-154,208.48

Finding the Fourth Proportional to 281,541.15, 388,531.76 and 154,208.48

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Solution

The fourth proportional to 281,541.15, 388,531.76 and 154,208.48 is: 212,810.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,541.15 : 388,531.76 = 154,208.48 : x
  2. Step 2: Convert to fraction form
    281,541.15/388,531.76 = 154,208.48/x
  3. Step 3: Cross multiply
    281,541.15x = 388,531.76 × 154,208.48
  4. Step 4: Simplify right side
    281,541.15x = 59,914,889,427.62
  5. Step 5: Solve for x
    x = 59,914,889,427.62/281,541.15
  6. Step 6: Final answer
    x = 212,810.42

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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.