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Finding the Fourth Proportional to 353,079.02, 487,238.79 and 200,131.29

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Solution

The fourth proportional to 353,079.02, 487,238.79 and 200,131.29 is: 276,175.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,079.02 : 487,238.79 = 200,131.29 : x
  2. Step 2: Convert to fraction form
    353,079.02/487,238.79 = 200,131.29/x
  3. Step 3: Cross multiply
    353,079.02x = 487,238.79 × 200,131.29
  4. Step 4: Simplify right side
    353,079.02x = 97,511,727,580.74
  5. Step 5: Solve for x
    x = 97,511,727,580.74/353,079.02
  6. Step 6: Final answer
    x = 276,175.37

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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.