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Finding the Fourth Proportional to 455,555, 683,332.68 and 123,131

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Solution

The fourth proportional to 455,555, 683,332.68 and 123,131 is: 184,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,555 : 683,332.68 = 123,131 : x
  2. Step 2: Convert to fraction form
    455,555/683,332.68 = 123,131/x
  3. Step 3: Cross multiply
    455,555x = 683,332.68 × 123,131
  4. Step 4: Simplify right side
    455,555x = 84,139,436,221.08
  5. Step 5: Solve for x
    x = 84,139,436,221.08/455,555
  6. Step 6: Final answer
    x = 184,696.55

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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.