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Finding the Fourth Proportional to 303,356.86, 454,840.89 and 125,986.30

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Solution

The fourth proportional to 303,356.86, 454,840.89 and 125,986.30 is: 188,898.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,356.86 : 454,840.89 = 125,986.30 : x
  2. Step 2: Convert to fraction form
    303,356.86/454,840.89 = 125,986.30/x
  3. Step 3: Cross multiply
    303,356.86x = 454,840.89 × 125,986.30
  4. Step 4: Simplify right side
    303,356.86x = 57,303,720,819.81
  5. Step 5: Solve for x
    x = 57,303,720,819.81/303,356.86
  6. Step 6: Final answer
    x = 188,898.71

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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.