Home / 285,840.02-428,763.65-108,299.34

Finding the Fourth Proportional to 285,840.02, 428,763.65 and 108,299.34

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Solution

The fourth proportional to 285,840.02, 428,763.65 and 108,299.34 is: 162,450.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,840.02 : 428,763.65 = 108,299.34 : x
  2. Step 2: Convert to fraction form
    285,840.02/428,763.65 = 108,299.34/x
  3. Step 3: Cross multiply
    285,840.02x = 428,763.65 × 108,299.34
  4. Step 4: Simplify right side
    285,840.02x = 46,434,820,310.99
  5. Step 5: Solve for x
    x = 46,434,820,310.99/285,840.02
  6. Step 6: Final answer
    x = 162,450.38

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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.