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Finding the Fourth Proportional to 165,385, 228,250.56 and 92,807.92

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Solution

The fourth proportional to 165,385, 228,250.56 and 92,807.92 is: 128,085.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,385 : 228,250.56 = 92,807.92 : x
  2. Step 2: Convert to fraction form
    165,385/228,250.56 = 92,807.92/x
  3. Step 3: Cross multiply
    165,385x = 228,250.56 × 92,807.92
  4. Step 4: Simplify right side
    165,385x = 21,183,459,712.44
  5. Step 5: Solve for x
    x = 21,183,459,712.44/165,385
  6. Step 6: Final answer
    x = 128,085.74

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1.5x scale

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.