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Finding the Fourth Proportional to 361,490.40, 498,856.80 and 200,355.84

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Solution

The fourth proportional to 361,490.40, 498,856.80 and 200,355.84 is: 276,491.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,490.40 : 498,856.80 = 200,355.84 : x
  2. Step 2: Convert to fraction form
    361,490.40/498,856.80 = 200,355.84/x
  3. Step 3: Cross multiply
    361,490.40x = 498,856.80 × 200,355.84
  4. Step 4: Simplify right side
    361,490.40x = 99,948,873,203.71
  5. Step 5: Solve for x
    x = 99,948,873,203.71/361,490.40
  6. Step 6: Final answer
    x = 276,491.09

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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.