Home / 421,618.92-581,821.70-230,628.20

Finding the Fourth Proportional to 421,618.92, 581,821.70 and 230,628.20

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Solution

The fourth proportional to 421,618.92, 581,821.70 and 230,628.20 is: 318,260.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,618.92 : 581,821.70 = 230,628.20 : x
  2. Step 2: Convert to fraction form
    421,618.92/581,821.70 = 230,628.20/x
  3. Step 3: Cross multiply
    421,618.92x = 581,821.70 × 230,628.20
  4. Step 4: Simplify right side
    421,618.92x = 134,184,491,391.94
  5. Step 5: Solve for x
    x = 134,184,491,391.94/421,618.92
  6. Step 6: Final answer
    x = 318,260.13

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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.