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Finding the Fourth Proportional to 373,656.40, 515,641.52 and 203,893.36

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Solution

The fourth proportional to 373,656.40, 515,641.52 and 203,893.36 is: 281,370.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,656.40 : 515,641.52 = 203,893.36 : x
  2. Step 2: Convert to fraction form
    373,656.40/515,641.52 = 203,893.36/x
  3. Step 3: Cross multiply
    373,656.40x = 515,641.52 × 203,893.36
  4. Step 4: Simplify right side
    373,656.40x = 105,135,882,068.31
  5. Step 5: Solve for x
    x = 105,135,882,068.31/373,656.40
  6. Step 6: Final answer
    x = 281,370.48

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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.