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Finding the Fourth Proportional to 321,146.82, 443,126.28 and 183,262.79

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Solution

The fourth proportional to 321,146.82, 443,126.28 and 183,262.79 is: 252,870.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,146.82 : 443,126.28 = 183,262.79 : x
  2. Step 2: Convert to fraction form
    321,146.82/443,126.28 = 183,262.79/x
  3. Step 3: Cross multiply
    321,146.82x = 443,126.28 × 183,262.79
  4. Step 4: Simplify right side
    321,146.82x = 81,208,556,829.15
  5. Step 5: Solve for x
    x = 81,208,556,829.15/321,146.82
  6. Step 6: Final answer
    x = 252,870.50

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1.5x scale

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.