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Finding the Fourth Proportional to 353,052.75, 487,210.83 and 200,119.86

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Solution

The fourth proportional to 353,052.75, 487,210.83 and 200,119.86 is: 276,164.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,052.75 : 487,210.83 = 200,119.86 : x
  2. Step 2: Convert to fraction form
    353,052.75/487,210.83 = 200,119.86/x
  3. Step 3: Cross multiply
    353,052.75x = 487,210.83 × 200,119.86
  4. Step 4: Simplify right side
    353,052.75x = 97,500,563,090.08
  5. Step 5: Solve for x
    x = 97,500,563,090.08/353,052.75
  6. Step 6: Final answer
    x = 276,164.29

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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.