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Finding the Fourth Proportional to 366,981.80, 550,472.70 and 320,325.80

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Solution

The fourth proportional to 366,981.80, 550,472.70 and 320,325.80 is: 480,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,981.80 : 550,472.70 = 320,325.80 : x
  2. Step 2: Convert to fraction form
    366,981.80/550,472.70 = 320,325.80/x
  3. Step 3: Cross multiply
    366,981.80x = 550,472.70 × 320,325.80
  4. Step 4: Simplify right side
    366,981.80x = 176,330,608,005.66
  5. Step 5: Solve for x
    x = 176,330,608,005.66/366,981.80
  6. Step 6: Final answer
    x = 480,488.70

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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.