Home / 312,741.42-431,582.90-169,501.43

Finding the Fourth Proportional to 312,741.42, 431,582.90 and 169,501.43

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Solution

The fourth proportional to 312,741.42, 431,582.90 and 169,501.43 is: 233,911.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,741.42 : 431,582.90 = 169,501.43 : x
  2. Step 2: Convert to fraction form
    312,741.42/431,582.90 = 169,501.43/x
  3. Step 3: Cross multiply
    312,741.42x = 431,582.90 × 169,501.43
  4. Step 4: Simplify right side
    312,741.42x = 73,153,915,708.13
  5. Step 5: Solve for x
    x = 73,153,915,708.13/312,741.42
  6. Step 6: Final answer
    x = 233,911.82

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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.