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Finding the Fourth Proportional to 349,630.56, 482,485.32 and 196,657.20

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Solution

The fourth proportional to 349,630.56, 482,485.32 and 196,657.20 is: 271,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,630.56 : 482,485.32 = 196,657.20 : x
  2. Step 2: Convert to fraction form
    349,630.56/482,485.32 = 196,657.20/x
  3. Step 3: Cross multiply
    349,630.56x = 482,485.32 × 196,657.20
  4. Step 4: Simplify right side
    349,630.56x = 94,884,212,072.30
  5. Step 5: Solve for x
    x = 94,884,212,072.30/349,630.56
  6. Step 6: Final answer
    x = 271,384.21

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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.