Home / 240,489.36-331,904.16-139,887.36

Finding the Fourth Proportional to 240,489.36, 331,904.16 and 139,887.36

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Solution

The fourth proportional to 240,489.36, 331,904.16 and 139,887.36 is: 193,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,489.36 : 331,904.16 = 139,887.36 : x
  2. Step 2: Convert to fraction form
    240,489.36/331,904.16 = 139,887.36/x
  3. Step 3: Cross multiply
    240,489.36x = 331,904.16 × 139,887.36
  4. Step 4: Simplify right side
    240,489.36x = 46,429,196,715.42
  5. Step 5: Solve for x
    x = 46,429,196,715.42/240,489.36
  6. Step 6: Final answer
    x = 193,061.33

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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.