Home / 421,131.45-581,161.74-230,144.90

Finding the Fourth Proportional to 421,131.45, 581,161.74 and 230,144.90

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Solution

The fourth proportional to 421,131.45, 581,161.74 and 230,144.90 is: 317,600.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,131.45 : 581,161.74 = 230,144.90 : x
  2. Step 2: Convert to fraction form
    421,131.45/581,161.74 = 230,144.90/x
  3. Step 3: Cross multiply
    421,131.45x = 581,161.74 × 230,144.90
  4. Step 4: Simplify right side
    421,131.45x = 133,751,406,767.27
  5. Step 5: Solve for x
    x = 133,751,406,767.27/421,131.45
  6. Step 6: Final answer
    x = 317,600.14

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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.