Home / 303,338.20-455,007.30-103,628.65

Finding the Fourth Proportional to 303,338.20, 455,007.30 and 103,628.65

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Solution

The fourth proportional to 303,338.20, 455,007.30 and 103,628.65 is: 155,442.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,338.20 : 455,007.30 = 103,628.65 : x
  2. Step 2: Convert to fraction form
    303,338.20/455,007.30 = 103,628.65/x
  3. Step 3: Cross multiply
    303,338.20x = 455,007.30 × 103,628.65
  4. Step 4: Simplify right side
    303,338.20x = 47,151,792,239.15
  5. Step 5: Solve for x
    x = 47,151,792,239.15/303,338.20
  6. Step 6: Final answer
    x = 155,442.98

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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.