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Finding the Fourth Proportional to 165,841.16, 228,893.46 and 115,511

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Solution

The fourth proportional to 165,841.16, 228,893.46 and 115,511 is: 159,427.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,841.16 : 228,893.46 = 115,511 : x
  2. Step 2: Convert to fraction form
    165,841.16/228,893.46 = 115,511/x
  3. Step 3: Cross multiply
    165,841.16x = 228,893.46 × 115,511
  4. Step 4: Simplify right side
    165,841.16x = 26,439,712,458.06
  5. Step 5: Solve for x
    x = 26,439,712,458.06/165,841.16
  6. Step 6: Final answer
    x = 159,427.93

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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.