Home / 481,255.20-721,742.64-144,282.40

Finding the Fourth Proportional to 481,255.20, 721,742.64 and 144,282.40

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Solution

The fourth proportional to 481,255.20, 721,742.64 and 144,282.40 is: 216,381.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,255.20 : 721,742.64 = 144,282.40 : x
  2. Step 2: Convert to fraction form
    481,255.20/721,742.64 = 144,282.40/x
  3. Step 3: Cross multiply
    481,255.20x = 721,742.64 × 144,282.40
  4. Step 4: Simplify right side
    481,255.20x = 104,134,760,281.54
  5. Step 5: Solve for x
    x = 104,134,760,281.54/481,255.20
  6. Step 6: Final answer
    x = 216,381.58

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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.