Home / 313,212.23-432,234-169,972.23

Finding the Fourth Proportional to 313,212.23, 432,234 and 169,972.23

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Solution

The fourth proportional to 313,212.23, 432,234 and 169,972.23 is: 234,562.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,212.23 : 432,234 = 169,972.23 : x
  2. Step 2: Convert to fraction form
    313,212.23/432,234 = 169,972.23/x
  3. Step 3: Cross multiply
    313,212.23x = 432,234 × 169,972.23
  4. Step 4: Simplify right side
    313,212.23x = 73,467,776,861.82
  5. Step 5: Solve for x
    x = 73,467,776,861.82/313,212.23
  6. Step 6: Final answer
    x = 234,562.29

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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.