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Finding the Fourth Proportional to 303,100.75, 418,422.50 and 175,729.87

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Solution

The fourth proportional to 303,100.75, 418,422.50 and 175,729.87 is: 242,590.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,100.75 : 418,422.50 = 175,729.87 : x
  2. Step 2: Convert to fraction form
    303,100.75/418,422.50 = 175,729.87/x
  3. Step 3: Cross multiply
    303,100.75x = 418,422.50 × 175,729.87
  4. Step 4: Simplify right side
    303,100.75x = 73,529,330,923.34
  5. Step 5: Solve for x
    x = 73,529,330,923.34/303,100.75
  6. Step 6: Final answer
    x = 242,590.40

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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.