Home / 312,741.48-431,583.03-169,501.44

Finding the Fourth Proportional to 312,741.48, 431,583.03 and 169,501.44

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Solution

The fourth proportional to 312,741.48, 431,583.03 and 169,501.44 is: 233,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,741.48 : 431,583.03 = 169,501.44 : x
  2. Step 2: Convert to fraction form
    312,741.48/431,583.03 = 169,501.44/x
  3. Step 3: Cross multiply
    312,741.48x = 431,583.03 × 169,501.44
  4. Step 4: Simplify right side
    312,741.48x = 73,153,945,064.56
  5. Step 5: Solve for x
    x = 73,153,945,064.56/312,741.48
  6. Step 6: Final answer
    x = 233,911.87

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1.5x scale

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.