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Finding the Fourth Proportional to 219,269.52, 328,915.04 and 71,525.52

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Solution

The fourth proportional to 219,269.52, 328,915.04 and 71,525.52 is: 107,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,269.52 : 328,915.04 = 71,525.52 : x
  2. Step 2: Convert to fraction form
    219,269.52/328,915.04 = 71,525.52/x
  3. Step 3: Cross multiply
    219,269.52x = 328,915.04 × 71,525.52
  4. Step 4: Simplify right side
    219,269.52x = 23,525,819,271.82
  5. Step 5: Solve for x
    x = 23,525,819,271.82/219,269.52
  6. Step 6: Final answer
    x = 107,291.79

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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.