Home / 281,308.23-388,206.41-153,995.67

Finding the Fourth Proportional to 281,308.23, 388,206.41 and 153,995.67

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Solution

The fourth proportional to 281,308.23, 388,206.41 and 153,995.67 is: 212,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,308.23 : 388,206.41 = 153,995.67 : x
  2. Step 2: Convert to fraction form
    281,308.23/388,206.41 = 153,995.67/x
  3. Step 3: Cross multiply
    281,308.23x = 388,206.41 × 153,995.67
  4. Step 4: Simplify right side
    281,308.23x = 59,782,105,436.27
  5. Step 5: Solve for x
    x = 59,782,105,436.27/281,308.23
  6. Step 6: Final answer
    x = 212,514.60

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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.