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Finding the Fourth Proportional to 281,325.34, 387,825.60 and 200,612.89

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Solution

The fourth proportional to 281,325.34, 387,825.60 and 200,612.89 is: 276,558.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,325.34 : 387,825.60 = 200,612.89 : x
  2. Step 2: Convert to fraction form
    281,325.34/387,825.60 = 200,612.89/x
  3. Step 3: Cross multiply
    281,325.34x = 387,825.60 × 200,612.89
  4. Step 4: Simplify right side
    281,325.34x = 77,802,814,431.98
  5. Step 5: Solve for x
    x = 77,802,814,431.98/281,325.34
  6. Step 6: Final answer
    x = 276,558.15

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1.5x scale

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.