Home / 455,212.20-682,818.30-155,702.55

Finding the Fourth Proportional to 455,212.20, 682,818.30 and 155,702.55

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Solution

The fourth proportional to 455,212.20, 682,818.30 and 155,702.55 is: 233,553.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,212.20 : 682,818.30 = 155,702.55 : x
  2. Step 2: Convert to fraction form
    455,212.20/682,818.30 = 155,702.55/x
  3. Step 3: Cross multiply
    455,212.20x = 682,818.30 × 155,702.55
  4. Step 4: Simplify right side
    455,212.20x = 106,316,550,496.67
  5. Step 5: Solve for x
    x = 106,316,550,496.67/455,212.20
  6. Step 6: Final answer
    x = 233,553.83

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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.