Home / 221,446.01-305,438.03-147,821.31

Finding the Fourth Proportional to 221,446.01, 305,438.03 and 147,821.31

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Solution

The fourth proportional to 221,446.01, 305,438.03 and 147,821.31 is: 203,888.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,446.01 : 305,438.03 = 147,821.31 : x
  2. Step 2: Convert to fraction form
    221,446.01/305,438.03 = 147,821.31/x
  3. Step 3: Cross multiply
    221,446.01x = 305,438.03 × 147,821.31
  4. Step 4: Simplify right side
    221,446.01x = 45,150,248,979.31
  5. Step 5: Solve for x
    x = 45,150,248,979.31/221,446.01
  6. Step 6: Final answer
    x = 203,888.30

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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.