Home / 219,310.07-328,976.91-69,561.72

Finding the Fourth Proportional to 219,310.07, 328,976.91 and 69,561.72

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Solution

The fourth proportional to 219,310.07, 328,976.91 and 69,561.72 is: 104,346.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,310.07 : 328,976.91 = 69,561.72 : x
  2. Step 2: Convert to fraction form
    219,310.07/328,976.91 = 69,561.72/x
  3. Step 3: Cross multiply
    219,310.07x = 328,976.91 × 69,561.72
  4. Step 4: Simplify right side
    219,310.07x = 22,884,199,699.89
  5. Step 5: Solve for x
    x = 22,884,199,699.89/219,310.07
  6. Step 6: Final answer
    x = 104,346.33

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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.