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Finding the Fourth Proportional to 320,187.60, 480,305.16 and 95,530.32

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Solution

The fourth proportional to 320,187.60, 480,305.16 and 95,530.32 is: 143,302.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,187.60 : 480,305.16 = 95,530.32 : x
  2. Step 2: Convert to fraction form
    320,187.60/480,305.16 = 95,530.32/x
  3. Step 3: Cross multiply
    320,187.60x = 480,305.16 × 95,530.32
  4. Step 4: Simplify right side
    320,187.60x = 45,883,705,632.45
  5. Step 5: Solve for x
    x = 45,883,705,632.45/320,187.60
  6. Step 6: Final answer
    x = 143,302.57

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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.