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Finding the Fourth Proportional to 165,461.76, 228,339 and 90,010.44

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Solution

The fourth proportional to 165,461.76, 228,339 and 90,010.44 is: 124,215.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,461.76 : 228,339 = 90,010.44 : x
  2. Step 2: Convert to fraction form
    165,461.76/228,339 = 90,010.44/x
  3. Step 3: Cross multiply
    165,461.76x = 228,339 × 90,010.44
  4. Step 4: Simplify right side
    165,461.76x = 20,552,893,859.16
  5. Step 5: Solve for x
    x = 20,552,893,859.16/165,461.76
  6. Step 6: Final answer
    x = 124,215.37

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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.