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Finding the Fourth Proportional to 400,031.88, 552,072.96 and 238,893.72

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Solution

The fourth proportional to 400,031.88, 552,072.96 and 238,893.72 is: 329,690.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,031.88 : 552,072.96 = 238,893.72 : x
  2. Step 2: Convert to fraction form
    400,031.88/552,072.96 = 238,893.72/x
  3. Step 3: Cross multiply
    400,031.88x = 552,072.96 × 238,893.72
  4. Step 4: Simplify right side
    400,031.88x = 131,886,763,125.81
  5. Step 5: Solve for x
    x = 131,886,763,125.81/400,031.88
  6. Step 6: Final answer
    x = 329,690.63

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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.