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Finding the Fourth Proportional to 325,623.20, 488,521.20 and 115,239.20

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Solution

The fourth proportional to 325,623.20, 488,521.20 and 115,239.20 is: 172,889.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,623.20 : 488,521.20 = 115,239.20 : x
  2. Step 2: Convert to fraction form
    325,623.20/488,521.20 = 115,239.20/x
  3. Step 3: Cross multiply
    325,623.20x = 488,521.20 × 115,239.20
  4. Step 4: Simplify right side
    325,623.20x = 56,296,792,271.04
  5. Step 5: Solve for x
    x = 56,296,792,271.04/325,623.20
  6. Step 6: Final answer
    x = 172,889.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.