Home / 219,110.86-328,633.28-69,331.67

Finding the Fourth Proportional to 219,110.86, 328,633.28 and 69,331.67

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Solution

The fourth proportional to 219,110.86, 328,633.28 and 69,331.67 is: 103,987.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,110.86 : 328,633.28 = 69,331.67 : x
  2. Step 2: Convert to fraction form
    219,110.86/328,633.28 = 69,331.67/x
  3. Step 3: Cross multiply
    219,110.86x = 328,633.28 × 69,331.67
  4. Step 4: Simplify right side
    219,110.86x = 22,784,694,119.98
  5. Step 5: Solve for x
    x = 22,784,694,119.98/219,110.86
  6. Step 6: Final answer
    x = 103,987.06

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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.