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Finding the Fourth Proportional to 353,803.35, 488,120.39 and 200,752.90

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Solution

The fourth proportional to 353,803.35, 488,120.39 and 200,752.90 is: 276,966.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,803.35 : 488,120.39 = 200,752.90 : x
  2. Step 2: Convert to fraction form
    353,803.35/488,120.39 = 200,752.90/x
  3. Step 3: Cross multiply
    353,803.35x = 488,120.39 × 200,752.90
  4. Step 4: Simplify right side
    353,803.35x = 97,991,585,563.81
  5. Step 5: Solve for x
    x = 97,991,585,563.81/353,803.35
  6. Step 6: Final answer
    x = 276,966.25

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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.