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Finding the Fourth Proportional to 318,151.70, 439,052.30 and 174,912.75

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Solution

The fourth proportional to 318,151.70, 439,052.30 and 174,912.75 is: 241,381.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,151.70 : 439,052.30 = 174,912.75 : x
  2. Step 2: Convert to fraction form
    318,151.70/439,052.30 = 174,912.75/x
  3. Step 3: Cross multiply
    318,151.70x = 439,052.30 × 174,912.75
  4. Step 4: Simplify right side
    318,151.70x = 76,795,844,968.18
  5. Step 5: Solve for x
    x = 76,795,844,968.18/318,151.70
  6. Step 6: Final answer
    x = 241,381.22

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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.