Home / 352,724.57-528,724.49-139,405.81

Finding the Fourth Proportional to 352,724.57, 528,724.49 and 139,405.81

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Solution

The fourth proportional to 352,724.57, 528,724.49 and 139,405.81 is: 208,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,724.57 : 528,724.49 = 139,405.81 : x
  2. Step 2: Convert to fraction form
    352,724.57/528,724.49 = 139,405.81/x
  3. Step 3: Cross multiply
    352,724.57x = 528,724.49 × 139,405.81
  4. Step 4: Simplify right side
    352,724.57x = 73,707,263,776.45
  5. Step 5: Solve for x
    x = 73,707,263,776.45/352,724.57
  6. Step 6: Final answer
    x = 208,965.49

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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.