Home / 288,446.85-432,825.20-120,083.40

Finding the Fourth Proportional to 288,446.85, 432,825.20 and 120,083.40

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Solution

The fourth proportional to 288,446.85, 432,825.20 and 120,083.40 is: 180,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,446.85 : 432,825.20 = 120,083.40 : x
  2. Step 2: Convert to fraction form
    288,446.85/432,825.20 = 120,083.40/x
  3. Step 3: Cross multiply
    288,446.85x = 432,825.20 × 120,083.40
  4. Step 4: Simplify right side
    288,446.85x = 51,975,121,021.26
  5. Step 5: Solve for x
    x = 51,975,121,021.26/288,446.85
  6. Step 6: Final answer
    x = 180,189.59

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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.