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Finding the Fourth Proportional to 289,375.70, 433,480.35 and 164,570.90

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Solution

The fourth proportional to 289,375.70, 433,480.35 and 164,570.90 is: 246,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,375.70 : 433,480.35 = 164,570.90 : x
  2. Step 2: Convert to fraction form
    289,375.70/433,480.35 = 164,570.90/x
  3. Step 3: Cross multiply
    289,375.70x = 433,480.35 × 164,570.90
  4. Step 4: Simplify right side
    289,375.70x = 71,338,251,331.82
  5. Step 5: Solve for x
    x = 71,338,251,331.82/289,375.70
  6. Step 6: Final answer
    x = 246,524.68

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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.