Home / 318,014.32-438,867.90-174,778

Finding the Fourth Proportional to 318,014.32, 438,867.90 and 174,778

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Solution

The fourth proportional to 318,014.32, 438,867.90 and 174,778 is: 241,198.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,014.32 : 438,867.90 = 174,778 : x
  2. Step 2: Convert to fraction form
    318,014.32/438,867.90 = 174,778/x
  3. Step 3: Cross multiply
    318,014.32x = 438,867.90 × 174,778
  4. Step 4: Simplify right side
    318,014.32x = 76,704,453,826.20
  5. Step 5: Solve for x
    x = 76,704,453,826.20/318,014.32
  6. Step 6: Final answer
    x = 241,198.11

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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.