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Finding the Fourth Proportional to 328,539.08, 492,812.22 and 103,894.04

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Solution

The fourth proportional to 328,539.08, 492,812.22 and 103,894.04 is: 155,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,539.08 : 492,812.22 = 103,894.04 : x
  2. Step 2: Convert to fraction form
    328,539.08/492,812.22 = 103,894.04/x
  3. Step 3: Cross multiply
    328,539.08x = 492,812.22 × 103,894.04
  4. Step 4: Simplify right side
    328,539.08x = 51,200,252,497.17
  5. Step 5: Solve for x
    x = 51,200,252,497.17/328,539.08
  6. Step 6: Final answer
    x = 155,842.20

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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.