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Finding the Fourth Proportional to 361,445.92, 498,789.28 and 200,300.64

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Solution

The fourth proportional to 361,445.92, 498,789.28 and 200,300.64 is: 276,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,445.92 : 498,789.28 = 200,300.64 : x
  2. Step 2: Convert to fraction form
    361,445.92/498,789.28 = 200,300.64/x
  3. Step 3: Cross multiply
    361,445.92x = 498,789.28 × 200,300.64
  4. Step 4: Simplify right side
    361,445.92x = 99,907,812,009.14
  5. Step 5: Solve for x
    x = 99,907,812,009.14/361,445.92
  6. Step 6: Final answer
    x = 276,411.51

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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.