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Finding the Fourth Proportional to 361,449.45, 498,803.18 and 200,307.15

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Solution

The fourth proportional to 361,449.45, 498,803.18 and 200,307.15 is: 276,425.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,449.45 : 498,803.18 = 200,307.15 : x
  2. Step 2: Convert to fraction form
    361,449.45/498,803.18 = 200,307.15/x
  3. Step 3: Cross multiply
    361,449.45x = 498,803.18 × 200,307.15
  4. Step 4: Simplify right side
    361,449.45x = 99,913,842,395.20
  5. Step 5: Solve for x
    x = 99,913,842,395.20/361,449.45
  6. Step 6: Final answer
    x = 276,425.49

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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.