Home / 240,190.16-331,381.32-139,505.36

Finding the Fourth Proportional to 240,190.16, 331,381.32 and 139,505.36

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Solution

The fourth proportional to 240,190.16, 331,381.32 and 139,505.36 is: 192,470.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,190.16 : 331,381.32 = 139,505.36 : x
  2. Step 2: Convert to fraction form
    240,190.16/331,381.32 = 139,505.36/x
  3. Step 3: Cross multiply
    240,190.16x = 331,381.32 × 139,505.36
  4. Step 4: Simplify right side
    240,190.16x = 46,229,470,343.88
  5. Step 5: Solve for x
    x = 46,229,470,343.88/240,190.16
  6. Step 6: Final answer
    x = 192,470.29

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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.