Home / 219,017.82-328,526.78-76,974.60

Finding the Fourth Proportional to 219,017.82, 328,526.78 and 76,974.60

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Solution

The fourth proportional to 219,017.82, 328,526.78 and 76,974.60 is: 115,461.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,017.82 : 328,526.78 = 76,974.60 : x
  2. Step 2: Convert to fraction form
    219,017.82/328,526.78 = 76,974.60/x
  3. Step 3: Cross multiply
    219,017.82x = 328,526.78 × 76,974.60
  4. Step 4: Simplify right side
    219,017.82x = 25,288,217,094.92
  5. Step 5: Solve for x
    x = 25,288,217,094.92/219,017.82
  6. Step 6: Final answer
    x = 115,461.92

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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.