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Finding the Fourth Proportional to 320,377.48, 480,549.71 and 95,739.77

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Solution

The fourth proportional to 320,377.48, 480,549.71 and 95,739.77 is: 143,604.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,377.48 : 480,549.71 = 95,739.77 : x
  2. Step 2: Convert to fraction form
    320,377.48/480,549.71 = 95,739.77/x
  3. Step 3: Cross multiply
    320,377.48x = 480,549.71 × 95,739.77
  4. Step 4: Simplify right side
    320,377.48x = 46,007,720,149.69
  5. Step 5: Solve for x
    x = 46,007,720,149.69/320,377.48
  6. Step 6: Final answer
    x = 143,604.73

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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.