Home / 455,715.45-683,669.97-156,115.55

Finding the Fourth Proportional to 455,715.45, 683,669.97 and 156,115.55

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Solution

The fourth proportional to 455,715.45, 683,669.97 and 156,115.55 is: 234,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,715.45 : 683,669.97 = 156,115.55 : x
  2. Step 2: Convert to fraction form
    455,715.45/683,669.97 = 156,115.55/x
  3. Step 3: Cross multiply
    455,715.45x = 683,669.97 × 156,115.55
  4. Step 4: Simplify right side
    455,715.45x = 106,731,515,094.21
  5. Step 5: Solve for x
    x = 106,731,515,094.21/455,715.45
  6. Step 6: Final answer
    x = 234,206.49

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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.