Home / 218,220.41-301,185.51-136,586.52

Finding the Fourth Proportional to 218,220.41, 301,185.51 and 136,586.52

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Solution

The fourth proportional to 218,220.41, 301,185.51 and 136,586.52 is: 188,515.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,220.41 : 301,185.51 = 136,586.52 : x
  2. Step 2: Convert to fraction form
    218,220.41/301,185.51 = 136,586.52/x
  3. Step 3: Cross multiply
    218,220.41x = 301,185.51 × 136,586.52
  4. Step 4: Simplify right side
    218,220.41x = 41,137,880,173.13
  5. Step 5: Solve for x
    x = 41,137,880,173.13/218,220.41
  6. Step 6: Final answer
    x = 188,515.27

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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.