Home / 320,279.62-480,439.25-107,066.72

Finding the Fourth Proportional to 320,279.62, 480,439.25 and 107,066.72

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Solution

The fourth proportional to 320,279.62, 480,439.25 and 107,066.72 is: 160,606.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,279.62 : 480,439.25 = 107,066.72 : x
  2. Step 2: Convert to fraction form
    320,279.62/480,439.25 = 107,066.72/x
  3. Step 3: Cross multiply
    320,279.62x = 480,439.25 × 107,066.72
  4. Step 4: Simplify right side
    320,279.62x = 51,439,054,656.76
  5. Step 5: Solve for x
    x = 51,439,054,656.76/320,279.62
  6. Step 6: Final answer
    x = 160,606.71

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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.