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Finding the Fourth Proportional to 340,663.45, 470,126.22 and 195,495.79

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Solution

The fourth proportional to 340,663.45, 470,126.22 and 195,495.79 is: 269,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,663.45 : 470,126.22 = 195,495.79 : x
  2. Step 2: Convert to fraction form
    340,663.45/470,126.22 = 195,495.79/x
  3. Step 3: Cross multiply
    340,663.45x = 470,126.22 × 195,495.79
  4. Step 4: Simplify right side
    340,663.45x = 91,907,695,801.13
  5. Step 5: Solve for x
    x = 91,907,695,801.13/340,663.45
  6. Step 6: Final answer
    x = 269,790.30

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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.