Home / 288,385.26-397,943.64-197,818.86

Finding the Fourth Proportional to 288,385.26, 397,943.64 and 197,818.86

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Solution

The fourth proportional to 288,385.26, 397,943.64 and 197,818.86 is: 272,970.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,385.26 : 397,943.64 = 197,818.86 : x
  2. Step 2: Convert to fraction form
    288,385.26/397,943.64 = 197,818.86/x
  3. Step 3: Cross multiply
    288,385.26x = 397,943.64 × 197,818.86
  4. Step 4: Simplify right side
    288,385.26x = 78,720,757,209.05
  5. Step 5: Solve for x
    x = 78,720,757,209.05/288,385.26
  6. Step 6: Final answer
    x = 272,970.81

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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.