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Finding the Fourth Proportional to 259,752.40, 389,628.60 and 200,703.40

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Solution

The fourth proportional to 259,752.40, 389,628.60 and 200,703.40 is: 301,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,752.40 : 389,628.60 = 200,703.40 : x
  2. Step 2: Convert to fraction form
    259,752.40/389,628.60 = 200,703.40/x
  3. Step 3: Cross multiply
    259,752.40x = 389,628.60 × 200,703.40
  4. Step 4: Simplify right side
    259,752.40x = 78,199,784,757.24
  5. Step 5: Solve for x
    x = 78,199,784,757.24/259,752.40
  6. Step 6: Final answer
    x = 301,055.10

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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.