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Finding the Fourth Proportional to 331,202.78, 456,047.66 and 249,649.54

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Solution

The fourth proportional to 331,202.78, 456,047.66 and 249,649.54 is: 343,753.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,202.78 : 456,047.66 = 249,649.54 : x
  2. Step 2: Convert to fraction form
    331,202.78/456,047.66 = 249,649.54/x
  3. Step 3: Cross multiply
    331,202.78x = 456,047.66 × 249,649.54
  4. Step 4: Simplify right side
    331,202.78x = 113,852,088,537.08
  5. Step 5: Solve for x
    x = 113,852,088,537.08/331,202.78
  6. Step 6: Final answer
    x = 343,753.42

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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.