Home / 421,045.28-581,042.61-227,453.04

Finding the Fourth Proportional to 421,045.28, 581,042.61 and 227,453.04

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Solution

The fourth proportional to 421,045.28, 581,042.61 and 227,453.04 is: 313,885.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,045.28 : 581,042.61 = 227,453.04 : x
  2. Step 2: Convert to fraction form
    421,045.28/581,042.61 = 227,453.04/x
  3. Step 3: Cross multiply
    421,045.28x = 581,042.61 × 227,453.04
  4. Step 4: Simplify right side
    421,045.28x = 132,159,908,014.03
  5. Step 5: Solve for x
    x = 132,159,908,014.03/421,045.28
  6. Step 6: Final answer
    x = 313,885.27

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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.