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Finding the Fourth Proportional to 361,428.44, 498,730.60 and 200,242.76

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Solution

The fourth proportional to 361,428.44, 498,730.60 and 200,242.76 is: 276,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,428.44 : 498,730.60 = 200,242.76 : x
  2. Step 2: Convert to fraction form
    361,428.44/498,730.60 = 200,242.76/x
  3. Step 3: Cross multiply
    361,428.44x = 498,730.60 × 200,242.76
  4. Step 4: Simplify right side
    361,428.44x = 99,867,191,840.46
  5. Step 5: Solve for x
    x = 99,867,191,840.46/361,428.44
  6. Step 6: Final answer
    x = 276,312.49

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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.