Home / 402,902.20-603,624.30-192,075.40

Finding the Fourth Proportional to 402,902.20, 603,624.30 and 192,075.40

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Solution

The fourth proportional to 402,902.20, 603,624.30 and 192,075.40 is: 287,765.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,902.20 : 603,624.30 = 192,075.40 : x
  2. Step 2: Convert to fraction form
    402,902.20/603,624.30 = 192,075.40/x
  3. Step 3: Cross multiply
    402,902.20x = 603,624.30 × 192,075.40
  4. Step 4: Simplify right side
    402,902.20x = 115,941,378,872.22
  5. Step 5: Solve for x
    x = 115,941,378,872.22/402,902.20
  6. Step 6: Final answer
    x = 287,765.56

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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.