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Finding the Fourth Proportional to 329,148.60, 493,722.90 and 308,412.60

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Solution

The fourth proportional to 329,148.60, 493,722.90 and 308,412.60 is: 462,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,148.60 : 493,722.90 = 308,412.60 : x
  2. Step 2: Convert to fraction form
    329,148.60/493,722.90 = 308,412.60/x
  3. Step 3: Cross multiply
    329,148.60x = 493,722.90 × 308,412.60
  4. Step 4: Simplify right side
    329,148.60x = 152,270,363,268.54
  5. Step 5: Solve for x
    x = 152,270,363,268.54/329,148.60
  6. Step 6: Final answer
    x = 462,618.90

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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.