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Finding the Fourth Proportional to 455,313.36, 682,851.06 and 135,379.08

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Solution

The fourth proportional to 455,313.36, 682,851.06 and 135,379.08 is: 203,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,313.36 : 682,851.06 = 135,379.08 : x
  2. Step 2: Convert to fraction form
    455,313.36/682,851.06 = 135,379.08/x
  3. Step 3: Cross multiply
    455,313.36x = 682,851.06 × 135,379.08
  4. Step 4: Simplify right side
    455,313.36x = 92,443,748,279.82
  5. Step 5: Solve for x
    x = 92,443,748,279.82/455,313.36
  6. Step 6: Final answer
    x = 203,033.24

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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.