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Finding the Fourth Proportional to 380,049.80, 569,698.70 and 180,018.60

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Solution

The fourth proportional to 380,049.80, 569,698.70 and 180,018.60 is: 269,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,049.80 : 569,698.70 = 180,018.60 : x
  2. Step 2: Convert to fraction form
    380,049.80/569,698.70 = 180,018.60/x
  3. Step 3: Cross multiply
    380,049.80x = 569,698.70 × 180,018.60
  4. Step 4: Simplify right side
    380,049.80x = 102,556,362,395.82
  5. Step 5: Solve for x
    x = 102,556,362,395.82/380,049.80
  6. Step 6: Final answer
    x = 269,849.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.