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Finding the Fourth Proportional to 664,005.38, 996,011.71 and 165,369.38

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Solution

The fourth proportional to 664,005.38, 996,011.71 and 165,369.38 is: 248,054.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,005.38 : 996,011.71 = 165,369.38 : x
  2. Step 2: Convert to fraction form
    664,005.38/996,011.71 = 165,369.38/x
  3. Step 3: Cross multiply
    664,005.38x = 996,011.71 × 165,369.38
  4. Step 4: Simplify right side
    664,005.38x = 164,709,833,561.96
  5. Step 5: Solve for x
    x = 164,709,833,561.96/664,005.38
  6. Step 6: Final answer
    x = 248,054.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.