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Finding the Fourth Proportional to 210,778.21, 316,103.50 and 110,883.31

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Solution

The fourth proportional to 210,778.21, 316,103.50 and 110,883.31 is: 166,291.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,778.21 : 316,103.50 = 110,883.31 : x
  2. Step 2: Convert to fraction form
    210,778.21/316,103.50 = 110,883.31/x
  3. Step 3: Cross multiply
    210,778.21x = 316,103.50 × 110,883.31
  4. Step 4: Simplify right side
    210,778.21x = 35,050,600,247.65
  5. Step 5: Solve for x
    x = 35,050,600,247.65/210,778.21
  6. Step 6: Final answer
    x = 166,291.39

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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.