Home / 281,419.32-388,370.22-154,106.04

Finding the Fourth Proportional to 281,419.32, 388,370.22 and 154,106.04

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Solution

The fourth proportional to 281,419.32, 388,370.22 and 154,106.04 is: 212,672.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,419.32 : 388,370.22 = 154,106.04 : x
  2. Step 2: Convert to fraction form
    281,419.32/388,370.22 = 154,106.04/x
  3. Step 3: Cross multiply
    281,419.32x = 388,370.22 × 154,106.04
  4. Step 4: Simplify right side
    281,419.32x = 59,850,196,658.13
  5. Step 5: Solve for x
    x = 59,850,196,658.13/281,419.32
  6. Step 6: Final answer
    x = 212,672.66

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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.