Home / 299,619.09-449,430.39-99,938.97

Finding the Fourth Proportional to 299,619.09, 449,430.39 and 99,938.97

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Solution

The fourth proportional to 299,619.09, 449,430.39 and 99,938.97 is: 149,909.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,619.09 : 449,430.39 = 99,938.97 : x
  2. Step 2: Convert to fraction form
    299,619.09/449,430.39 = 99,938.97/x
  3. Step 3: Cross multiply
    299,619.09x = 449,430.39 × 99,938.97
  4. Step 4: Simplify right side
    299,619.09x = 44,915,610,263.30
  5. Step 5: Solve for x
    x = 44,915,610,263.30/299,619.09
  6. Step 6: Final answer
    x = 149,909.04

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1.5x scale

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.