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Finding the Fourth Proportional to 331,290.67, 456,635.22 and 234,369.31

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Solution

The fourth proportional to 331,290.67, 456,635.22 and 234,369.31 is: 323,043.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,290.67 : 456,635.22 = 234,369.31 : x
  2. Step 2: Convert to fraction form
    331,290.67/456,635.22 = 234,369.31/x
  3. Step 3: Cross multiply
    331,290.67x = 456,635.22 × 234,369.31
  4. Step 4: Simplify right side
    331,290.67x = 107,021,281,433.10
  5. Step 5: Solve for x
    x = 107,021,281,433.10/331,290.67
  6. Step 6: Final answer
    x = 323,043.45

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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.