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Finding the Fourth Proportional to 349,546.43, 484,200.65 and 342,460.55

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Solution

The fourth proportional to 349,546.43, 484,200.65 and 342,460.55 is: 474,385.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,546.43 : 484,200.65 = 342,460.55 : x
  2. Step 2: Convert to fraction form
    349,546.43/484,200.65 = 342,460.55/x
  3. Step 3: Cross multiply
    349,546.43x = 484,200.65 × 342,460.55
  4. Step 4: Simplify right side
    349,546.43x = 165,819,622,976.01
  5. Step 5: Solve for x
    x = 165,819,622,976.01/349,546.43
  6. Step 6: Final answer
    x = 474,385.11

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.