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Finding the Fourth Proportional to 383,393.88, 575,352.90 and 134,075.88

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Solution

The fourth proportional to 383,393.88, 575,352.90 and 134,075.88 is: 201,205.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,393.88 : 575,352.90 = 134,075.88 : x
  2. Step 2: Convert to fraction form
    383,393.88/575,352.90 = 134,075.88/x
  3. Step 3: Cross multiply
    383,393.88x = 575,352.90 × 134,075.88
  4. Step 4: Simplify right side
    383,393.88x = 77,140,946,378.05
  5. Step 5: Solve for x
    x = 77,140,946,378.05/383,393.88
  6. Step 6: Final answer
    x = 201,205.47

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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.