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Finding the Fourth Proportional to 308,315.58, 462,504.15 and 83,679.63

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Solution

The fourth proportional to 308,315.58, 462,504.15 and 83,679.63 is: 125,527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,315.58 : 462,504.15 = 83,679.63 : x
  2. Step 2: Convert to fraction form
    308,315.58/462,504.15 = 83,679.63/x
  3. Step 3: Cross multiply
    308,315.58x = 462,504.15 × 83,679.63
  4. Step 4: Simplify right side
    308,315.58x = 38,702,176,145.46
  5. Step 5: Solve for x
    x = 38,702,176,145.46/308,315.58
  6. Step 6: Final answer
    x = 125,527.80

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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.