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Finding the Fourth Proportional to 223,665.30, 308,630.05 and 151,225.79

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Solution

The fourth proportional to 223,665.30, 308,630.05 and 151,225.79 is: 208,672.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,665.30 : 308,630.05 = 151,225.79 : x
  2. Step 2: Convert to fraction form
    223,665.30/308,630.05 = 151,225.79/x
  3. Step 3: Cross multiply
    223,665.30x = 308,630.05 × 151,225.79
  4. Step 4: Simplify right side
    223,665.30x = 46,672,821,207.77
  5. Step 5: Solve for x
    x = 46,672,821,207.77/223,665.30
  6. Step 6: Final answer
    x = 208,672.61

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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.