Home / 312,868.79-431,768.04-176,899.82

Finding the Fourth Proportional to 312,868.79, 431,768.04 and 176,899.82

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Solution

The fourth proportional to 312,868.79, 431,768.04 and 176,899.82 is: 244,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,868.79 : 431,768.04 = 176,899.82 : x
  2. Step 2: Convert to fraction form
    312,868.79/431,768.04 = 176,899.82/x
  3. Step 3: Cross multiply
    312,868.79x = 431,768.04 × 176,899.82
  4. Step 4: Simplify right side
    312,868.79x = 76,379,688,557.75
  5. Step 5: Solve for x
    x = 76,379,688,557.75/312,868.79
  6. Step 6: Final answer
    x = 244,126.90

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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.