Home / 288,309.12-397,608.48-180,890.88

Finding the Fourth Proportional to 288,309.12, 397,608.48 and 180,890.88

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Solution

The fourth proportional to 288,309.12, 397,608.48 and 180,890.88 is: 249,467.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,309.12 : 397,608.48 = 180,890.88 : x
  2. Step 2: Convert to fraction form
    288,309.12/397,608.48 = 180,890.88/x
  3. Step 3: Cross multiply
    288,309.12x = 397,608.48 × 180,890.88
  4. Step 4: Simplify right side
    288,309.12x = 71,923,747,842.66
  5. Step 5: Solve for x
    x = 71,923,747,842.66/288,309.12
  6. Step 6: Final answer
    x = 249,467.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.