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Finding the Fourth Proportional to 199,615.60, 299,423.40 and 187,805.80

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Solution

The fourth proportional to 199,615.60, 299,423.40 and 187,805.80 is: 281,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,615.60 : 299,423.40 = 187,805.80 : x
  2. Step 2: Convert to fraction form
    199,615.60/299,423.40 = 187,805.80/x
  3. Step 3: Cross multiply
    199,615.60x = 299,423.40 × 187,805.80
  4. Step 4: Simplify right side
    199,615.60x = 56,233,451,175.72
  5. Step 5: Solve for x
    x = 56,233,451,175.72/199,615.60
  6. Step 6: Final answer
    x = 281,708.70

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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.