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Finding the Fourth Proportional to 546,064.20, 818,513.10 and 208,974.60

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Solution

The fourth proportional to 546,064.20, 818,513.10 and 208,974.60 is: 313,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,064.20 : 818,513.10 = 208,974.60 : x
  2. Step 2: Convert to fraction form
    546,064.20/818,513.10 = 208,974.60/x
  3. Step 3: Cross multiply
    546,064.20x = 818,513.10 × 208,974.60
  4. Step 4: Simplify right side
    546,064.20x = 171,048,447,667.26
  5. Step 5: Solve for x
    x = 171,048,447,667.26/546,064.20
  6. Step 6: Final answer
    x = 313,238.71

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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.