Home / 309,286.50-426,816.18-180,301.56

Finding the Fourth Proportional to 309,286.50, 426,816.18 and 180,301.56

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Solution

The fourth proportional to 309,286.50, 426,816.18 and 180,301.56 is: 248,816.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,286.50 : 426,816.18 = 180,301.56 : x
  2. Step 2: Convert to fraction form
    309,286.50/426,816.18 = 180,301.56/x
  3. Step 3: Cross multiply
    309,286.50x = 426,816.18 × 180,301.56
  4. Step 4: Simplify right side
    309,286.50x = 76,955,623,087.24
  5. Step 5: Solve for x
    x = 76,955,623,087.24/309,286.50
  6. Step 6: Final answer
    x = 248,816.62

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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.