Home / 259,343.24-388,313.40-134,421.80

Finding the Fourth Proportional to 259,343.24, 388,313.40 and 134,421.80

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Solution

The fourth proportional to 259,343.24, 388,313.40 and 134,421.80 is: 201,269.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,343.24 : 388,313.40 = 134,421.80 : x
  2. Step 2: Convert to fraction form
    259,343.24/388,313.40 = 134,421.80/x
  3. Step 3: Cross multiply
    259,343.24x = 388,313.40 × 134,421.80
  4. Step 4: Simplify right side
    259,343.24x = 52,197,786,192.12
  5. Step 5: Solve for x
    x = 52,197,786,192.12/259,343.24
  6. Step 6: Final answer
    x = 201,269.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.