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Finding the Fourth Proportional to 303,606.20, 455,684.70 and 153,950.60

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Solution

The fourth proportional to 303,606.20, 455,684.70 and 153,950.60 is: 231,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,606.20 : 455,684.70 = 153,950.60 : x
  2. Step 2: Convert to fraction form
    303,606.20/455,684.70 = 153,950.60/x
  3. Step 3: Cross multiply
    303,606.20x = 455,684.70 × 153,950.60
  4. Step 4: Simplify right side
    303,606.20x = 70,152,932,975.82
  5. Step 5: Solve for x
    x = 70,152,932,975.82/303,606.20
  6. Step 6: Final answer
    x = 231,065.55

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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.