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Finding the Fourth Proportional to 311,372.47, 465,352.65 and 227,309.65

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Solution

The fourth proportional to 311,372.47, 465,352.65 and 227,309.65 is: 339,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,372.47 : 465,352.65 = 227,309.65 : x
  2. Step 2: Convert to fraction form
    311,372.47/465,352.65 = 227,309.65/x
  3. Step 3: Cross multiply
    311,372.47x = 465,352.65 × 227,309.65
  4. Step 4: Simplify right side
    311,372.47x = 105,779,144,534.76
  5. Step 5: Solve for x
    x = 105,779,144,534.76/311,372.47
  6. Step 6: Final answer
    x = 339,719.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.