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Finding the Fourth Proportional to 373,830.63, 515,876.35 and 343,737.51

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Solution

The fourth proportional to 373,830.63, 515,876.35 and 343,737.51 is: 474,348.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,830.63 : 515,876.35 = 343,737.51 : x
  2. Step 2: Convert to fraction form
    373,830.63/515,876.35 = 343,737.51/x
  3. Step 3: Cross multiply
    373,830.63x = 515,876.35 × 343,737.51
  4. Step 4: Simplify right side
    373,830.63x = 177,326,052,016.89
  5. Step 5: Solve for x
    x = 177,326,052,016.89/373,830.63
  6. Step 6: Final answer
    x = 474,348.64

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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.