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Finding the Fourth Proportional to 360,018.80, 540,028.20 and 123,369.20

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Solution

The fourth proportional to 360,018.80, 540,028.20 and 123,369.20 is: 185,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,018.80 : 540,028.20 = 123,369.20 : x
  2. Step 2: Convert to fraction form
    360,018.80/540,028.20 = 123,369.20/x
  3. Step 3: Cross multiply
    360,018.80x = 540,028.20 × 123,369.20
  4. Step 4: Simplify right side
    360,018.80x = 66,622,847,011.44
  5. Step 5: Solve for x
    x = 66,622,847,011.44/360,018.80
  6. Step 6: Final answer
    x = 185,053.80

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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.