Home / 303,664.26-455,449.56-103,938.78

Finding the Fourth Proportional to 303,664.26, 455,449.56 and 103,938.78

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Solution

The fourth proportional to 303,664.26, 455,449.56 and 103,938.78 is: 155,892.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,664.26 : 455,449.56 = 103,938.78 : x
  2. Step 2: Convert to fraction form
    303,664.26/455,449.56 = 103,938.78/x
  3. Step 3: Cross multiply
    303,664.26x = 455,449.56 × 103,938.78
  4. Step 4: Simplify right side
    303,664.26x = 47,338,871,617.94
  5. Step 5: Solve for x
    x = 47,338,871,617.94/303,664.26
  6. Step 6: Final answer
    x = 155,892.14

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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.