Home / 234,875.43-324,212.15-139,382.12

Finding the Fourth Proportional to 234,875.43, 324,212.15 and 139,382.12

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Solution

The fourth proportional to 234,875.43, 324,212.15 and 139,382.12 is: 192,397.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,875.43 : 324,212.15 = 139,382.12 : x
  2. Step 2: Convert to fraction form
    234,875.43/324,212.15 = 139,382.12/x
  3. Step 3: Cross multiply
    234,875.43x = 324,212.15 × 139,382.12
  4. Step 4: Simplify right side
    234,875.43x = 45,189,376,796.76
  5. Step 5: Solve for x
    x = 45,189,376,796.76/234,875.43
  6. Step 6: Final answer
    x = 192,397.21

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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.