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Finding the Fourth Proportional to 347,206.73, 520,851.69 and 122,520.75

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Solution

The fourth proportional to 347,206.73, 520,851.69 and 122,520.75 is: 183,795.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,206.73 : 520,851.69 = 122,520.75 : x
  2. Step 2: Convert to fraction form
    347,206.73/520,851.69 = 122,520.75/x
  3. Step 3: Cross multiply
    347,206.73x = 520,851.69 × 122,520.75
  4. Step 4: Simplify right side
    347,206.73x = 63,815,139,697.57
  5. Step 5: Solve for x
    x = 63,815,139,697.57/347,206.73
  6. Step 6: Final answer
    x = 183,795.81

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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.