Home / 252,840.89-348,919.36-139,663.64

Finding the Fourth Proportional to 252,840.89, 348,919.36 and 139,663.64

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Solution

The fourth proportional to 252,840.89, 348,919.36 and 139,663.64 is: 192,735.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,840.89 : 348,919.36 = 139,663.64 : x
  2. Step 2: Convert to fraction form
    252,840.89/348,919.36 = 139,663.64/x
  3. Step 3: Cross multiply
    252,840.89x = 348,919.36 × 139,663.64
  4. Step 4: Simplify right side
    252,840.89x = 48,731,345,790.31
  5. Step 5: Solve for x
    x = 48,731,345,790.31/252,840.89
  6. Step 6: Final answer
    x = 192,735.23

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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.