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Finding the Fourth Proportional to 373,514.47, 515,474.33 and 212,384.51

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Solution

The fourth proportional to 373,514.47, 515,474.33 and 212,384.51 is: 293,104.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,514.47 : 515,474.33 = 212,384.51 : x
  2. Step 2: Convert to fraction form
    373,514.47/515,474.33 = 212,384.51/x
  3. Step 3: Cross multiply
    373,514.47x = 515,474.33 × 212,384.51
  4. Step 4: Simplify right side
    373,514.47x = 109,478,765,382.57
  5. Step 5: Solve for x
    x = 109,478,765,382.57/373,514.47
  6. Step 6: Final answer
    x = 293,104.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.