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Finding the Fourth Proportional to 360,075.88, 540,099.90 and 90,203.56

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Solution

The fourth proportional to 360,075.88, 540,099.90 and 90,203.56 is: 135,301.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,075.88 : 540,099.90 = 90,203.56 : x
  2. Step 2: Convert to fraction form
    360,075.88/540,099.90 = 90,203.56/x
  3. Step 3: Cross multiply
    360,075.88x = 540,099.90 × 90,203.56
  4. Step 4: Simplify right side
    360,075.88x = 48,718,933,735.64
  5. Step 5: Solve for x
    x = 48,718,933,735.64/360,075.88
  6. Step 6: Final answer
    x = 135,301.85

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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.