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Finding the Fourth Proportional to 370,992.96, 511,583.04 and 220,060.80

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Solution

The fourth proportional to 370,992.96, 511,583.04 and 220,060.80 is: 303,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,992.96 : 511,583.04 = 220,060.80 : x
  2. Step 2: Convert to fraction form
    370,992.96/511,583.04 = 220,060.80/x
  3. Step 3: Cross multiply
    370,992.96x = 511,583.04 × 220,060.80
  4. Step 4: Simplify right side
    370,992.96x = 112,579,373,048.83
  5. Step 5: Solve for x
    x = 112,579,373,048.83/370,992.96
  6. Step 6: Final answer
    x = 303,454.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.