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Finding the Fourth Proportional to 164,430.20, 246,645.30 and 146,919.80

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Solution

The fourth proportional to 164,430.20, 246,645.30 and 146,919.80 is: 220,379.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,430.20 : 246,645.30 = 146,919.80 : x
  2. Step 2: Convert to fraction form
    164,430.20/246,645.30 = 146,919.80/x
  3. Step 3: Cross multiply
    164,430.20x = 246,645.30 × 146,919.80
  4. Step 4: Simplify right side
    164,430.20x = 36,237,078,146.94
  5. Step 5: Solve for x
    x = 36,237,078,146.94/164,430.20
  6. Step 6: Final answer
    x = 220,379.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.