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Finding the Fourth Proportional to 165,473.01, 228,353.04 and 90,021.51

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Solution

The fourth proportional to 165,473.01, 228,353.04 and 90,021.51 is: 124,229.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,473.01 : 228,353.04 = 90,021.51 : x
  2. Step 2: Convert to fraction form
    165,473.01/228,353.04 = 90,021.51/x
  3. Step 3: Cross multiply
    165,473.01x = 228,353.04 × 90,021.51
  4. Step 4: Simplify right side
    165,473.01x = 20,556,685,473.89
  5. Step 5: Solve for x
    x = 20,556,685,473.89/165,473.01
  6. Step 6: Final answer
    x = 124,229.84

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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.