Home / 288,023.86-431,902.07-168,115.43

Finding the Fourth Proportional to 288,023.86, 431,902.07 and 168,115.43

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Solution

The fourth proportional to 288,023.86, 431,902.07 and 168,115.43 is: 252,095.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,023.86 : 431,902.07 = 168,115.43 : x
  2. Step 2: Convert to fraction form
    288,023.86/431,902.07 = 168,115.43/x
  3. Step 3: Cross multiply
    288,023.86x = 431,902.07 × 168,115.43
  4. Step 4: Simplify right side
    288,023.86x = 72,609,403,085.55
  5. Step 5: Solve for x
    x = 72,609,403,085.55/288,023.86
  6. Step 6: Final answer
    x = 252,095.10

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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.