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Finding the Fourth Proportional to 219,353.40, 328,538.02 and 179,987.40

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Solution

The fourth proportional to 219,353.40, 328,538.02 and 179,987.40 is: 269,577.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,353.40 : 328,538.02 = 179,987.40 : x
  2. Step 2: Convert to fraction form
    219,353.40/328,538.02 = 179,987.40/x
  3. Step 3: Cross multiply
    219,353.40x = 328,538.02 × 179,987.40
  4. Step 4: Simplify right side
    219,353.40x = 59,132,704,020.95
  5. Step 5: Solve for x
    x = 59,132,704,020.95/219,353.40
  6. Step 6: Final answer
    x = 269,577.33

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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.