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Finding the Fourth Proportional to 319,523.40, 479,102.85 and 119,850.30

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Solution

The fourth proportional to 319,523.40, 479,102.85 and 119,850.30 is: 179,707.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,523.40 : 479,102.85 = 119,850.30 : x
  2. Step 2: Convert to fraction form
    319,523.40/479,102.85 = 119,850.30/x
  3. Step 3: Cross multiply
    319,523.40x = 479,102.85 × 119,850.30
  4. Step 4: Simplify right side
    319,523.40x = 57,420,620,303.36
  5. Step 5: Solve for x
    x = 57,420,620,303.36/319,523.40
  6. Step 6: Final answer
    x = 179,707.09

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1.5x scale

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.