Home / 421,108.83-581,142.87-230,125.41

Finding the Fourth Proportional to 421,108.83, 581,142.87 and 230,125.41

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Solution

The fourth proportional to 421,108.83, 581,142.87 and 230,125.41 is: 317,580.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,108.83 : 581,142.87 = 230,125.41 : x
  2. Step 2: Convert to fraction form
    421,108.83/581,142.87 = 230,125.41/x
  3. Step 3: Cross multiply
    421,108.83x = 581,142.87 × 230,125.41
  4. Step 4: Simplify right side
    421,108.83x = 133,735,741,227.33
  5. Step 5: Solve for x
    x = 133,735,741,227.33/421,108.83
  6. Step 6: Final answer
    x = 317,580.00

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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.