Home / 385,103.20-576,099.60-333,090.40

Finding the Fourth Proportional to 385,103.20, 576,099.60 and 333,090.40

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Solution

The fourth proportional to 385,103.20, 576,099.60 and 333,090.40 is: 498,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,103.20 : 576,099.60 = 333,090.40 : x
  2. Step 2: Convert to fraction form
    385,103.20/576,099.60 = 333,090.40/x
  3. Step 3: Cross multiply
    385,103.20x = 576,099.60 × 333,090.40
  4. Step 4: Simplify right side
    385,103.20x = 191,893,246,203.84
  5. Step 5: Solve for x
    x = 191,893,246,203.84/385,103.20
  6. Step 6: Final answer
    x = 498,290.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.