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Finding the Fourth Proportional to 367,009.80, 550,514.70 and 320,353.80

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Solution

The fourth proportional to 367,009.80, 550,514.70 and 320,353.80 is: 480,530.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,009.80 : 550,514.70 = 320,353.80 : x
  2. Step 2: Convert to fraction form
    367,009.80/550,514.70 = 320,353.80/x
  3. Step 3: Cross multiply
    367,009.80x = 550,514.70 × 320,353.80
  4. Step 4: Simplify right side
    367,009.80x = 176,359,476,100.86
  5. Step 5: Solve for x
    x = 176,359,476,100.86/367,009.80
  6. Step 6: Final answer
    x = 480,530.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.