Home / 481,253.20-721,739.64-144,280.40

Finding the Fourth Proportional to 481,253.20, 721,739.64 and 144,280.40

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Solution

The fourth proportional to 481,253.20, 721,739.64 and 144,280.40 is: 216,378.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,253.20 : 721,739.64 = 144,280.40 : x
  2. Step 2: Convert to fraction form
    481,253.20/721,739.64 = 144,280.40/x
  3. Step 3: Cross multiply
    481,253.20x = 721,739.64 × 144,280.40
  4. Step 4: Simplify right side
    481,253.20x = 104,132,883,955.06
  5. Step 5: Solve for x
    x = 104,132,883,955.06/481,253.20
  6. Step 6: Final answer
    x = 216,378.58

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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.