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Finding the Fourth Proportional to 303,558.90, 455,629.95 and 153,968.10

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Solution

The fourth proportional to 303,558.90, 455,629.95 and 153,968.10 is: 231,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,558.90 : 455,629.95 = 153,968.10 : x
  2. Step 2: Convert to fraction form
    303,558.90/455,629.95 = 153,968.10/x
  3. Step 3: Cross multiply
    303,558.90x = 455,629.95 × 153,968.10
  4. Step 4: Simplify right side
    303,558.90x = 70,152,477,704.60
  5. Step 5: Solve for x
    x = 70,152,477,704.60/303,558.90
  6. Step 6: Final answer
    x = 231,100.05

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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.