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Finding the Fourth Proportional to 605,125.40, 907,786.61 and 178,704.34

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Solution

The fourth proportional to 605,125.40, 907,786.61 and 178,704.34 is: 268,085.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,125.40 : 907,786.61 = 178,704.34 : x
  2. Step 2: Convert to fraction form
    605,125.40/907,786.61 = 178,704.34/x
  3. Step 3: Cross multiply
    605,125.40x = 907,786.61 × 178,704.34
  4. Step 4: Simplify right side
    605,125.40x = 162,225,409,614.34
  5. Step 5: Solve for x
    x = 162,225,409,614.34/605,125.40
  6. Step 6: Final answer
    x = 268,085.61

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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.