Home / 312,742.42-431,584.27-169,502.43

Finding the Fourth Proportional to 312,742.42, 431,584.27 and 169,502.43

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Solution

The fourth proportional to 312,742.42, 431,584.27 and 169,502.43 is: 233,913.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,742.42 : 431,584.27 = 169,502.43 : x
  2. Step 2: Convert to fraction form
    312,742.42/431,584.27 = 169,502.43/x
  3. Step 3: Cross multiply
    312,742.42x = 431,584.27 × 169,502.43
  4. Step 4: Simplify right side
    312,742.42x = 73,154,582,514.78
  5. Step 5: Solve for x
    x = 73,154,582,514.78/312,742.42
  6. Step 6: Final answer
    x = 233,913.21

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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.