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Finding the Fourth Proportional to 312,888.27, 468,849.33 and 211,288.17

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Solution

The fourth proportional to 312,888.27, 468,849.33 and 211,288.17 is: 316,606.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,888.27 : 468,849.33 = 211,288.17 : x
  2. Step 2: Convert to fraction form
    312,888.27/468,849.33 = 211,288.17/x
  3. Step 3: Cross multiply
    312,888.27x = 468,849.33 × 211,288.17
  4. Step 4: Simplify right side
    312,888.27x = 99,062,316,941.43
  5. Step 5: Solve for x
    x = 99,062,316,941.43/312,888.27
  6. Step 6: Final answer
    x = 316,606.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.