Home / 475,172.70-655,738.26-284,186.10

Finding the Fourth Proportional to 475,172.70, 655,738.26 and 284,186.10

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Solution

The fourth proportional to 475,172.70, 655,738.26 and 284,186.10 is: 392,176.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,172.70 : 655,738.26 = 284,186.10 : x
  2. Step 2: Convert to fraction form
    475,172.70/655,738.26 = 284,186.10/x
  3. Step 3: Cross multiply
    475,172.70x = 655,738.26 × 284,186.10
  4. Step 4: Simplify right side
    475,172.70x = 186,351,698,730.19
  5. Step 5: Solve for x
    x = 186,351,698,730.19/475,172.70
  6. Step 6: Final answer
    x = 392,176.78

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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.