Home / 303,640.17-455,155.44-103,823.90

Finding the Fourth Proportional to 303,640.17, 455,155.44 and 103,823.90

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Solution

The fourth proportional to 303,640.17, 455,155.44 and 103,823.90 is: 155,631.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,640.17 : 455,155.44 = 103,823.90 : x
  2. Step 2: Convert to fraction form
    303,640.17/455,155.44 = 103,823.90/x
  3. Step 3: Cross multiply
    303,640.17x = 455,155.44 × 103,823.90
  4. Step 4: Simplify right side
    303,640.17x = 47,256,014,219.57
  5. Step 5: Solve for x
    x = 47,256,014,219.57/303,640.17
  6. Step 6: Final answer
    x = 155,631.63

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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.