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Finding the Fourth Proportional to 219,033.30, 328,525.65 and 61,277.70

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Solution

The fourth proportional to 219,033.30, 328,525.65 and 61,277.70 is: 91,909.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,033.30 : 328,525.65 = 61,277.70 : x
  2. Step 2: Convert to fraction form
    219,033.30/328,525.65 = 61,277.70/x
  3. Step 3: Cross multiply
    219,033.30x = 328,525.65 × 61,277.70
  4. Step 4: Simplify right side
    219,033.30x = 20,131,296,223.01
  5. Step 5: Solve for x
    x = 20,131,296,223.01/219,033.30
  6. Step 6: Final answer
    x = 91,909.75

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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.