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Finding the Fourth Proportional to 571,498.20, 856,647.21 and 192,287.28

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Solution

The fourth proportional to 571,498.20, 856,647.21 and 192,287.28 is: 288,229.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,498.20 : 856,647.21 = 192,287.28 : x
  2. Step 2: Convert to fraction form
    571,498.20/856,647.21 = 192,287.28/x
  3. Step 3: Cross multiply
    571,498.20x = 856,647.21 × 192,287.28
  4. Step 4: Simplify right side
    571,498.20x = 164,722,364,782.38
  5. Step 5: Solve for x
    x = 164,722,364,782.38/571,498.20
  6. Step 6: Final answer
    x = 288,229.02

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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.