Home / 421,242.92-581,315.19-230,257.07

Finding the Fourth Proportional to 421,242.92, 581,315.19 and 230,257.07

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Solution

The fourth proportional to 421,242.92, 581,315.19 and 230,257.07 is: 317,754.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,242.92 : 581,315.19 = 230,257.07 : x
  2. Step 2: Convert to fraction form
    421,242.92/581,315.19 = 230,257.07/x
  3. Step 3: Cross multiply
    421,242.92x = 581,315.19 × 230,257.07
  4. Step 4: Simplify right side
    421,242.92x = 133,851,932,395.89
  5. Step 5: Solve for x
    x = 133,851,932,395.89/421,242.92
  6. Step 6: Final answer
    x = 317,754.73

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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.