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Finding the Fourth Proportional to 301,269.55, 415,373.70 and 220,556.95

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Solution

The fourth proportional to 301,269.55, 415,373.70 and 220,556.95 is: 304,091.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,269.55 : 415,373.70 = 220,556.95 : x
  2. Step 2: Convert to fraction form
    301,269.55/415,373.70 = 220,556.95/x
  3. Step 3: Cross multiply
    301,269.55x = 415,373.70 × 220,556.95
  4. Step 4: Simplify right side
    301,269.55x = 91,613,556,901.43
  5. Step 5: Solve for x
    x = 91,613,556,901.43/301,269.55
  6. Step 6: Final answer
    x = 304,091.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.