Home / 303,815.00-455,426.30-121,391.43

Finding the Fourth Proportional to 303,815.00, 455,426.30 and 121,391.43

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Solution

The fourth proportional to 303,815.00, 455,426.30 and 121,391.43 is: 181,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,815.00 : 455,426.30 = 121,391.43 : x
  2. Step 2: Convert to fraction form
    303,815.00/455,426.30 = 121,391.43/x
  3. Step 3: Cross multiply
    303,815.00x = 455,426.30 × 121,391.43
  4. Step 4: Simplify right side
    303,815.00x = 55,284,849,209.65
  5. Step 5: Solve for x
    x = 55,284,849,209.65/303,815.00
  6. Step 6: Final answer
    x = 181,968.80

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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.