Home / 361,449.12-498,819.76-200,300.80

Finding the Fourth Proportional to 361,449.12, 498,819.76 and 200,300.80

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Solution

The fourth proportional to 361,449.12, 498,819.76 and 200,300.80 is: 276,426.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,449.12 : 498,819.76 = 200,300.80 : x
  2. Step 2: Convert to fraction form
    361,449.12/498,819.76 = 200,300.80/x
  3. Step 3: Cross multiply
    361,449.12x = 498,819.76 × 200,300.80
  4. Step 4: Simplify right side
    361,449.12x = 99,913,996,983.81
  5. Step 5: Solve for x
    x = 99,913,996,983.81/361,449.12
  6. Step 6: Final answer
    x = 276,426.17

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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.