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Finding the Fourth Proportional to 320,056.06, 479,978.53 and 106,765.20

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Solution

The fourth proportional to 320,056.06, 479,978.53 and 106,765.20 is: 160,112.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,056.06 : 479,978.53 = 106,765.20 : x
  2. Step 2: Convert to fraction form
    320,056.06/479,978.53 = 106,765.20/x
  3. Step 3: Cross multiply
    320,056.06x = 479,978.53 × 106,765.20
  4. Step 4: Simplify right side
    320,056.06x = 51,245,003,751.16
  5. Step 5: Solve for x
    x = 51,245,003,751.16/320,056.06
  6. Step 6: Final answer
    x = 160,112.59

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1.5x scale

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.