Home / 481,043.28-721,569.76-214,817.28

Finding the Fourth Proportional to 481,043.28, 721,569.76 and 214,817.28

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Solution

The fourth proportional to 481,043.28, 721,569.76 and 214,817.28 is: 322,228.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,043.28 : 721,569.76 = 214,817.28 : x
  2. Step 2: Convert to fraction form
    481,043.28/721,569.76 = 214,817.28/x
  3. Step 3: Cross multiply
    481,043.28x = 721,569.76 × 214,817.28
  4. Step 4: Simplify right side
    481,043.28x = 155,005,653,173.45
  5. Step 5: Solve for x
    x = 155,005,653,173.45/481,043.28
  6. Step 6: Final answer
    x = 322,228.08

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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.