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Finding the Fourth Proportional to 225,527.60, 338,377.80 and 221,985.20

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Solution

The fourth proportional to 225,527.60, 338,377.80 and 221,985.20 is: 333,062.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,527.60 : 338,377.80 = 221,985.20 : x
  2. Step 2: Convert to fraction form
    225,527.60/338,377.80 = 221,985.20/x
  3. Step 3: Cross multiply
    225,527.60x = 338,377.80 × 221,985.20
  4. Step 4: Simplify right side
    225,527.60x = 75,114,863,608.56
  5. Step 5: Solve for x
    x = 75,114,863,608.56/225,527.60
  6. Step 6: Final answer
    x = 333,062.84

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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.