Home / 219,319.08-328,929.40-100,876.65

Finding the Fourth Proportional to 219,319.08, 328,929.40 and 100,876.65

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Solution

The fourth proportional to 219,319.08, 328,929.40 and 100,876.65 is: 151,292.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,319.08 : 328,929.40 = 100,876.65 : x
  2. Step 2: Convert to fraction form
    219,319.08/328,929.40 = 100,876.65/x
  3. Step 3: Cross multiply
    219,319.08x = 328,929.40 × 100,876.65
  4. Step 4: Simplify right side
    219,319.08x = 33,181,295,958.51
  5. Step 5: Solve for x
    x = 33,181,295,958.51/219,319.08
  6. Step 6: Final answer
    x = 151,292.34

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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.