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Finding the Fourth Proportional to 455,205.29, 682,881.84 and 170,918.24

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Solution

The fourth proportional to 455,205.29, 682,881.84 and 170,918.24 is: 256,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,205.29 : 682,881.84 = 170,918.24 : x
  2. Step 2: Convert to fraction form
    455,205.29/682,881.84 = 170,918.24/x
  3. Step 3: Cross multiply
    455,205.29x = 682,881.84 × 170,918.24
  4. Step 4: Simplify right side
    455,205.29x = 116,716,958,806.35
  5. Step 5: Solve for x
    x = 116,716,958,806.35/455,205.29
  6. Step 6: Final answer
    x = 256,405.10

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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.