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Finding the Fourth Proportional to 303,368.56, 455,150.16 and 145,608.10

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Solution

The fourth proportional to 303,368.56, 455,150.16 and 145,608.10 is: 218,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,368.56 : 455,150.16 = 145,608.10 : x
  2. Step 2: Convert to fraction form
    303,368.56/455,150.16 = 145,608.10/x
  3. Step 3: Cross multiply
    303,368.56x = 455,150.16 × 145,608.10
  4. Step 4: Simplify right side
    303,368.56x = 66,273,550,012.30
  5. Step 5: Solve for x
    x = 66,273,550,012.30/303,368.56
  6. Step 6: Final answer
    x = 218,458.86

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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.