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Finding the Fourth Proportional to 397,000.80, 595,501.20 and 219,853.80

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Solution

The fourth proportional to 397,000.80, 595,501.20 and 219,853.80 is: 329,780.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,000.80 : 595,501.20 = 219,853.80 : x
  2. Step 2: Convert to fraction form
    397,000.80/595,501.20 = 219,853.80/x
  3. Step 3: Cross multiply
    397,000.80x = 595,501.20 × 219,853.80
  4. Step 4: Simplify right side
    397,000.80x = 130,923,201,724.56
  5. Step 5: Solve for x
    x = 130,923,201,724.56/397,000.80
  6. Step 6: Final answer
    x = 329,780.70

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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.