Home / 240,136.28-331,389.08-131,242.82

Finding the Fourth Proportional to 240,136.28, 331,389.08 and 131,242.82

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Solution

The fourth proportional to 240,136.28, 331,389.08 and 131,242.82 is: 181,115.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,136.28 : 331,389.08 = 131,242.82 : x
  2. Step 2: Convert to fraction form
    240,136.28/331,389.08 = 131,242.82/x
  3. Step 3: Cross multiply
    240,136.28x = 331,389.08 × 131,242.82
  4. Step 4: Simplify right side
    240,136.28x = 43,492,435,063.25
  5. Step 5: Solve for x
    x = 43,492,435,063.25/240,136.28
  6. Step 6: Final answer
    x = 181,115.64

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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.