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Finding the Fourth Proportional to 320,590.87, 480,982.59 and 95,958.64

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Solution

The fourth proportional to 320,590.87, 480,982.59 and 95,958.64 is: 143,966.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,590.87 : 480,982.59 = 95,958.64 : x
  2. Step 2: Convert to fraction form
    320,590.87/480,982.59 = 95,958.64/x
  3. Step 3: Cross multiply
    320,590.87x = 480,982.59 × 95,958.64
  4. Step 4: Simplify right side
    320,590.87x = 46,154,435,200.08
  5. Step 5: Solve for x
    x = 46,154,435,200.08/320,590.87
  6. Step 6: Final answer
    x = 143,966.78

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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.