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Finding the Fourth Proportional to 455,536.80, 683,305.20 and 245,584.80

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Solution

The fourth proportional to 455,536.80, 683,305.20 and 245,584.80 is: 368,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,536.80 : 683,305.20 = 245,584.80 : x
  2. Step 2: Convert to fraction form
    455,536.80/683,305.20 = 245,584.80/x
  3. Step 3: Cross multiply
    455,536.80x = 683,305.20 × 245,584.80
  4. Step 4: Simplify right side
    455,536.80x = 167,809,370,880.96
  5. Step 5: Solve for x
    x = 167,809,370,880.96/455,536.80
  6. Step 6: Final answer
    x = 368,377.20

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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.