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Finding the Fourth Proportional to 361,659.60, 498,988.98 and 210,727.44

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Solution

The fourth proportional to 361,659.60, 498,988.98 and 210,727.44 is: 290,744.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,659.60 : 498,988.98 = 210,727.44 : x
  2. Step 2: Convert to fraction form
    361,659.60/498,988.98 = 210,727.44/x
  3. Step 3: Cross multiply
    361,659.60x = 498,988.98 × 210,727.44
  4. Step 4: Simplify right side
    361,659.60x = 105,150,670,343.61
  5. Step 5: Solve for x
    x = 105,150,670,343.61/361,659.60
  6. Step 6: Final answer
    x = 290,744.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.