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Finding the Fourth Proportional to 310,704.35, 428,767.93 and 174,738.26

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Solution

The fourth proportional to 310,704.35, 428,767.93 and 174,738.26 is: 241,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,704.35 : 428,767.93 = 174,738.26 : x
  2. Step 2: Convert to fraction form
    310,704.35/428,767.93 = 174,738.26/x
  3. Step 3: Cross multiply
    310,704.35x = 428,767.93 × 174,738.26
  4. Step 4: Simplify right side
    310,704.35x = 74,922,162,032.00
  5. Step 5: Solve for x
    x = 74,922,162,032.00/310,704.35
  6. Step 6: Final answer
    x = 241,136.51

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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.