Home / 298,533.20-447,858.86-85,303.04

Finding the Fourth Proportional to 298,533.20, 447,858.86 and 85,303.04

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Solution

The fourth proportional to 298,533.20, 447,858.86 and 85,303.04 is: 127,971.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,533.20 : 447,858.86 = 85,303.04 : x
  2. Step 2: Convert to fraction form
    298,533.20/447,858.86 = 85,303.04/x
  3. Step 3: Cross multiply
    298,533.20x = 447,858.86 × 85,303.04
  4. Step 4: Simplify right side
    298,533.20x = 38,203,719,583.12
  5. Step 5: Solve for x
    x = 38,203,719,583.12/298,533.20
  6. Step 6: Final answer
    x = 127,971.43

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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.