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Finding the Fourth Proportional to 313,283.67, 469,969.26 and 155,469.75

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Solution

The fourth proportional to 313,283.67, 469,969.26 and 155,469.75 is: 233,226.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,283.67 : 469,969.26 = 155,469.75 : x
  2. Step 2: Convert to fraction form
    313,283.67/469,969.26 = 155,469.75/x
  3. Step 3: Cross multiply
    313,283.67x = 469,969.26 × 155,469.75
  4. Step 4: Simplify right side
    313,283.67x = 73,066,003,359.89
  5. Step 5: Solve for x
    x = 73,066,003,359.89/313,283.67
  6. Step 6: Final answer
    x = 233,226.34

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1.5x scale

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.