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Finding the Fourth Proportional to 329,154.79, 493,750.61 and 92,479

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Solution

The fourth proportional to 329,154.79, 493,750.61 and 92,479 is: 138,723.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,154.79 : 493,750.61 = 92,479 : x
  2. Step 2: Convert to fraction form
    329,154.79/493,750.61 = 92,479/x
  3. Step 3: Cross multiply
    329,154.79x = 493,750.61 × 92,479
  4. Step 4: Simplify right side
    329,154.79x = 45,661,562,662.19
  5. Step 5: Solve for x
    x = 45,661,562,662.19/329,154.79
  6. Step 6: Final answer
    x = 138,723.68

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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.