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Finding the Fourth Proportional to 328,371.14, 492,556.70 and 253,600.34

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Solution

The fourth proportional to 328,371.14, 492,556.70 and 253,600.34 is: 380,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,371.14 : 492,556.70 = 253,600.34 : x
  2. Step 2: Convert to fraction form
    328,371.14/492,556.70 = 253,600.34/x
  3. Step 3: Cross multiply
    328,371.14x = 492,556.70 × 253,600.34
  4. Step 4: Simplify right side
    328,371.14x = 124,912,546,607.58
  5. Step 5: Solve for x
    x = 124,912,546,607.58/328,371.14
  6. Step 6: Final answer
    x = 380,400.51

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1.5x scale

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.