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Finding the Fourth Proportional to 351,450.17, 485,000.54 and 190,304.72

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Solution

The fourth proportional to 351,450.17, 485,000.54 and 190,304.72 is: 262,620.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,450.17 : 485,000.54 = 190,304.72 : x
  2. Step 2: Convert to fraction form
    351,450.17/485,000.54 = 190,304.72/x
  3. Step 3: Cross multiply
    351,450.17x = 485,000.54 × 190,304.72
  4. Step 4: Simplify right side
    351,450.17x = 92,297,891,964.55
  5. Step 5: Solve for x
    x = 92,297,891,964.55/351,450.17
  6. Step 6: Final answer
    x = 262,620.14

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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.