Home / 219,111.22-328,633.90-69,332.05

Finding the Fourth Proportional to 219,111.22, 328,633.90 and 69,332.05

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Solution

The fourth proportional to 219,111.22, 328,633.90 and 69,332.05 is: 103,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,111.22 : 328,633.90 = 69,332.05 : x
  2. Step 2: Convert to fraction form
    219,111.22/328,633.90 = 69,332.05/x
  3. Step 3: Cross multiply
    219,111.22x = 328,633.90 × 69,332.05
  4. Step 4: Simplify right side
    219,111.22x = 22,784,860,343.33
  5. Step 5: Solve for x
    x = 22,784,860,343.33/219,111.22
  6. Step 6: Final answer
    x = 103,987.65

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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.