Home / 321,005.20-481,565.40-134,035.60

Finding the Fourth Proportional to 321,005.20, 481,565.40 and 134,035.60

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Solution

The fourth proportional to 321,005.20, 481,565.40 and 134,035.60 is: 201,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,005.20 : 481,565.40 = 134,035.60 : x
  2. Step 2: Convert to fraction form
    321,005.20/481,565.40 = 134,035.60/x
  3. Step 3: Cross multiply
    321,005.20x = 481,565.40 × 134,035.60
  4. Step 4: Simplify right side
    321,005.20x = 64,546,907,328.24
  5. Step 5: Solve for x
    x = 64,546,907,328.24/321,005.20
  6. Step 6: Final answer
    x = 201,077.45

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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.