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Finding the Fourth Proportional to 313,912.76, 433,217.31 and 170,669.72

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Solution

The fourth proportional to 313,912.76, 433,217.31 and 170,669.72 is: 235,533.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,912.76 : 433,217.31 = 170,669.72 : x
  2. Step 2: Convert to fraction form
    313,912.76/433,217.31 = 170,669.72/x
  3. Step 3: Cross multiply
    313,912.76x = 433,217.31 × 170,669.72
  4. Step 4: Simplify right side
    313,912.76x = 73,937,074,830.77
  5. Step 5: Solve for x
    x = 73,937,074,830.77/313,912.76
  6. Step 6: Final answer
    x = 235,533.83

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1.5x scale

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.