Home / 421,085.85-581,099.99-230,099.25

Finding the Fourth Proportional to 421,085.85, 581,099.99 and 230,099.25

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Solution

The fourth proportional to 421,085.85, 581,099.99 and 230,099.25 is: 317,537.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,085.85 : 581,099.99 = 230,099.25 : x
  2. Step 2: Convert to fraction form
    421,085.85/581,099.99 = 230,099.25/x
  3. Step 3: Cross multiply
    421,085.85x = 581,099.99 × 230,099.25
  4. Step 4: Simplify right side
    421,085.85x = 133,710,671,874.01
  5. Step 5: Solve for x
    x = 133,710,671,874.01/421,085.85
  6. Step 6: Final answer
    x = 317,537.79

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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.