Home / 289,814.48-434,723.28-131,932.48

Finding the Fourth Proportional to 289,814.48, 434,723.28 and 131,932.48

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Solution

The fourth proportional to 289,814.48, 434,723.28 and 131,932.48 is: 197,899.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,814.48 : 434,723.28 = 131,932.48 : x
  2. Step 2: Convert to fraction form
    289,814.48/434,723.28 = 131,932.48/x
  3. Step 3: Cross multiply
    289,814.48x = 434,723.28 × 131,932.48
  4. Step 4: Simplify right side
    289,814.48x = 57,354,120,444.13
  5. Step 5: Solve for x
    x = 57,354,120,444.13/289,814.48
  6. Step 6: Final answer
    x = 197,899.43

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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.