Home / 289,464.03-399,112.92-249,108.41

Finding the Fourth Proportional to 289,464.03, 399,112.92 and 249,108.41

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Solution

The fourth proportional to 289,464.03, 399,112.92 and 249,108.41 is: 343,470.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,464.03 : 399,112.92 = 249,108.41 : x
  2. Step 2: Convert to fraction form
    289,464.03/399,112.92 = 249,108.41/x
  3. Step 3: Cross multiply
    289,464.03x = 399,112.92 × 249,108.41
  4. Step 4: Simplify right side
    289,464.03x = 99,422,385,909.44
  5. Step 5: Solve for x
    x = 99,422,385,909.44/289,464.03
  6. Step 6: Final answer
    x = 343,470.61

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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.