Home / 421,132.07-581,162.49-230,145.46

Finding the Fourth Proportional to 421,132.07, 581,162.49 and 230,145.46

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Solution

The fourth proportional to 421,132.07, 581,162.49 and 230,145.46 is: 317,600.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,132.07 : 581,162.49 = 230,145.46 : x
  2. Step 2: Convert to fraction form
    421,132.07/581,162.49 = 230,145.46/x
  3. Step 3: Cross multiply
    421,132.07x = 581,162.49 × 230,145.46
  4. Step 4: Simplify right side
    421,132.07x = 133,751,907,142.89
  5. Step 5: Solve for x
    x = 133,751,907,142.89/421,132.07
  6. Step 6: Final answer
    x = 317,600.86

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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.