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Finding the Fourth Proportional to 281,225.56, 387,687.66 and 200,513.08

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Solution

The fourth proportional to 281,225.56, 387,687.66 and 200,513.08 is: 276,420.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,225.56 : 387,687.66 = 200,513.08 : x
  2. Step 2: Convert to fraction form
    281,225.56/387,687.66 = 200,513.08/x
  3. Step 3: Cross multiply
    281,225.56x = 387,687.66 × 200,513.08
  4. Step 4: Simplify right side
    281,225.56x = 77,736,446,784.59
  5. Step 5: Solve for x
    x = 77,736,446,784.59/281,225.56
  6. Step 6: Final answer
    x = 276,420.28

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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.