Home / 320,253.37-480,388.50-140,246.19

Finding the Fourth Proportional to 320,253.37, 480,388.50 and 140,246.19

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Solution

The fourth proportional to 320,253.37, 480,388.50 and 140,246.19 is: 210,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,253.37 : 480,388.50 = 140,246.19 : x
  2. Step 2: Convert to fraction form
    320,253.37/480,388.50 = 140,246.19/x
  3. Step 3: Cross multiply
    320,253.37x = 480,388.50 × 140,246.19
  4. Step 4: Simplify right side
    320,253.37x = 67,372,656,844.82
  5. Step 5: Solve for x
    x = 67,372,656,844.82/320,253.37
  6. Step 6: Final answer
    x = 210,372.98

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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.