Home / 306,743.21-423,196.07-177,611.21

Finding the Fourth Proportional to 306,743.21, 423,196.07 and 177,611.21

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Solution

The fourth proportional to 306,743.21, 423,196.07 and 177,611.21 is: 245,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,743.21 : 423,196.07 = 177,611.21 : x
  2. Step 2: Convert to fraction form
    306,743.21/423,196.07 = 177,611.21/x
  3. Step 3: Cross multiply
    306,743.21x = 423,196.07 × 177,611.21
  4. Step 4: Simplify right side
    306,743.21x = 75,164,363,055.91
  5. Step 5: Solve for x
    x = 75,164,363,055.91/306,743.21
  6. Step 6: Final answer
    x = 245,040.03

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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.