Home / 219,487.06-328,976.45-100,909.54

Finding the Fourth Proportional to 219,487.06, 328,976.45 and 100,909.54

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Solution

The fourth proportional to 219,487.06, 328,976.45 and 100,909.54 is: 151,247.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,487.06 : 328,976.45 = 100,909.54 : x
  2. Step 2: Convert to fraction form
    219,487.06/328,976.45 = 100,909.54/x
  3. Step 3: Cross multiply
    219,487.06x = 328,976.45 × 100,909.54
  4. Step 4: Simplify right side
    219,487.06x = 33,196,860,913.34
  5. Step 5: Solve for x
    x = 33,196,860,913.34/219,487.06
  6. Step 6: Final answer
    x = 151,247.46

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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.