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Finding the Fourth Proportional to 340,997.52, 470,494.28 and 220,112.91

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Solution

The fourth proportional to 340,997.52, 470,494.28 and 220,112.91 is: 303,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,997.52 : 470,494.28 = 220,112.91 : x
  2. Step 2: Convert to fraction form
    340,997.52/470,494.28 = 220,112.91/x
  3. Step 3: Cross multiply
    340,997.52x = 470,494.28 × 220,112.91
  4. Step 4: Simplify right side
    340,997.52x = 103,561,865,735.11
  5. Step 5: Solve for x
    x = 103,561,865,735.11/340,997.52
  6. Step 6: Final answer
    x = 303,702.70

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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.