Home / 240,015.96-331,262.46-139,472.28

Finding the Fourth Proportional to 240,015.96, 331,262.46 and 139,472.28

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Solution

The fourth proportional to 240,015.96, 331,262.46 and 139,472.28 is: 192,495.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,015.96 : 331,262.46 = 139,472.28 : x
  2. Step 2: Convert to fraction form
    240,015.96/331,262.46 = 139,472.28/x
  3. Step 3: Cross multiply
    240,015.96x = 331,262.46 × 139,472.28
  4. Step 4: Simplify right side
    240,015.96x = 46,201,930,574.61
  5. Step 5: Solve for x
    x = 46,201,930,574.61/240,015.96
  6. Step 6: Final answer
    x = 192,495.24

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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.