Home / 402,170.12-603,121.23-162,222.05

Finding the Fourth Proportional to 402,170.12, 603,121.23 and 162,222.05

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Solution

The fourth proportional to 402,170.12, 603,121.23 and 162,222.05 is: 243,279.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,170.12 : 603,121.23 = 162,222.05 : x
  2. Step 2: Convert to fraction form
    402,170.12/603,121.23 = 162,222.05/x
  3. Step 3: Cross multiply
    402,170.12x = 603,121.23 × 162,222.05
  4. Step 4: Simplify right side
    402,170.12x = 97,839,562,329.12
  5. Step 5: Solve for x
    x = 97,839,562,329.12/402,170.12
  6. Step 6: Final answer
    x = 243,279.04

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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.