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Finding the Fourth Proportional to 515,322.88, 772,622.20 and 226,997.72

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Solution

The fourth proportional to 515,322.88, 772,622.20 and 226,997.72 is: 340,337.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,322.88 : 772,622.20 = 226,997.72 : x
  2. Step 2: Convert to fraction form
    515,322.88/772,622.20 = 226,997.72/x
  3. Step 3: Cross multiply
    515,322.88x = 772,622.20 × 226,997.72
  4. Step 4: Simplify right side
    515,322.88x = 175,383,477,821.38
  5. Step 5: Solve for x
    x = 175,383,477,821.38/515,322.88
  6. Step 6: Final answer
    x = 340,337.07

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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.