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Finding the Fourth Proportional to 374,893.52, 517,331.40 and 205,130.96

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Solution

The fourth proportional to 374,893.52, 517,331.40 and 205,130.96 is: 283,068.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,893.52 : 517,331.40 = 205,130.96 : x
  2. Step 2: Convert to fraction form
    374,893.52/517,331.40 = 205,130.96/x
  3. Step 3: Cross multiply
    374,893.52x = 517,331.40 × 205,130.96
  4. Step 4: Simplify right side
    374,893.52x = 106,120,686,720.14
  5. Step 5: Solve for x
    x = 106,120,686,720.14/374,893.52
  6. Step 6: Final answer
    x = 283,068.87

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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.