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Finding the Fourth Proportional to 219,329.06, 328,944.42 and 100,886.66

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Solution

The fourth proportional to 219,329.06, 328,944.42 and 100,886.66 is: 151,307.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,329.06 : 328,944.42 = 100,886.66 : x
  2. Step 2: Convert to fraction form
    219,329.06/328,944.42 = 100,886.66/x
  3. Step 3: Cross multiply
    219,329.06x = 328,944.42 × 100,886.66
  4. Step 4: Simplify right side
    219,329.06x = 33,186,103,859.44
  5. Step 5: Solve for x
    x = 33,186,103,859.44/219,329.06
  6. Step 6: Final answer
    x = 151,307.37

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1.5x scale

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.