Home / 402,209.22-603,313.30-102,689.85

Finding the Fourth Proportional to 402,209.22, 603,313.30 and 102,689.85

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Solution

The fourth proportional to 402,209.22, 603,313.30 and 102,689.85 is: 154,034.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,209.22 : 603,313.30 = 102,689.85 : x
  2. Step 2: Convert to fraction form
    402,209.22/603,313.30 = 102,689.85/x
  3. Step 3: Cross multiply
    402,209.22x = 603,313.30 × 102,689.85
  4. Step 4: Simplify right side
    402,209.22x = 61,954,152,280.01
  5. Step 5: Solve for x
    x = 61,954,152,280.01/402,209.22
  6. Step 6: Final answer
    x = 154,034.64

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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.