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Finding the Fourth Proportional to 308,439.90, 462,607.74 and 108,713.34

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Solution

The fourth proportional to 308,439.90, 462,607.74 and 108,713.34 is: 163,051.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,439.90 : 462,607.74 = 108,713.34 : x
  2. Step 2: Convert to fraction form
    308,439.90/462,607.74 = 108,713.34/x
  3. Step 3: Cross multiply
    308,439.90x = 462,607.74 × 108,713.34
  4. Step 4: Simplify right side
    308,439.90x = 50,291,632,525.25
  5. Step 5: Solve for x
    x = 50,291,632,525.25/308,439.90
  6. Step 6: Final answer
    x = 163,051.64

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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.