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Finding the Fourth Proportional to 218,477.78, 327,763.47 and 123,752.73

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Solution

The fourth proportional to 218,477.78, 327,763.47 and 123,752.73 is: 185,655.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,477.78 : 327,763.47 = 123,752.73 : x
  2. Step 2: Convert to fraction form
    218,477.78/327,763.47 = 123,752.73/x
  3. Step 3: Cross multiply
    218,477.78x = 327,763.47 × 123,752.73
  4. Step 4: Simplify right side
    218,477.78x = 40,561,624,206.77
  5. Step 5: Solve for x
    x = 40,561,624,206.77/218,477.78
  6. Step 6: Final answer
    x = 185,655.61

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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.