Home / 303,315.71-455,027.04-103,589.28

Finding the Fourth Proportional to 303,315.71, 455,027.04 and 103,589.28

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Solution

The fourth proportional to 303,315.71, 455,027.04 and 103,589.28 is: 155,402.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,315.71 : 455,027.04 = 103,589.28 : x
  2. Step 2: Convert to fraction form
    303,315.71/455,027.04 = 103,589.28/x
  3. Step 3: Cross multiply
    303,315.71x = 455,027.04 × 103,589.28
  4. Step 4: Simplify right side
    303,315.71x = 47,135,923,454.13
  5. Step 5: Solve for x
    x = 47,135,923,454.13/303,315.71
  6. Step 6: Final answer
    x = 155,402.19

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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.