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Finding the Fourth Proportional to 313,289.70, 432,341.97 and 170,049.71

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Solution

The fourth proportional to 313,289.70, 432,341.97 and 170,049.71 is: 234,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,289.70 : 432,341.97 = 170,049.71 : x
  2. Step 2: Convert to fraction form
    313,289.70/432,341.97 = 170,049.71/x
  3. Step 3: Cross multiply
    313,289.70x = 432,341.97 × 170,049.71
  4. Step 4: Simplify right side
    313,289.70x = 73,519,624,457.62
  5. Step 5: Solve for x
    x = 73,519,624,457.62/313,289.70
  6. Step 6: Final answer
    x = 234,669.78

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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.