Home / 305,054.28-457,740.96-221,504.60

Finding the Fourth Proportional to 305,054.28, 457,740.96 and 221,504.60

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Solution

The fourth proportional to 305,054.28, 457,740.96 and 221,504.60 is: 332,372.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,054.28 : 457,740.96 = 221,504.60 : x
  2. Step 2: Convert to fraction form
    305,054.28/457,740.96 = 221,504.60/x
  3. Step 3: Cross multiply
    305,054.28x = 457,740.96 × 221,504.60
  4. Step 4: Simplify right side
    305,054.28x = 101,391,728,248.42
  5. Step 5: Solve for x
    x = 101,391,728,248.42/305,054.28
  6. Step 6: Final answer
    x = 332,372.74

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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.