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Finding the Fourth Proportional to 230,991.50, 318,768.27 and 125,007.50

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Solution

The fourth proportional to 230,991.50, 318,768.27 and 125,007.50 is: 172,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,991.50 : 318,768.27 = 125,007.50 : x
  2. Step 2: Convert to fraction form
    230,991.50/318,768.27 = 125,007.50/x
  3. Step 3: Cross multiply
    230,991.50x = 318,768.27 × 125,007.50
  4. Step 4: Simplify right side
    230,991.50x = 39,848,424,512.03
  5. Step 5: Solve for x
    x = 39,848,424,512.03/230,991.50
  6. Step 6: Final answer
    x = 172,510.35

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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.