Home / 253,659.06-350,037-138,938.22

Finding the Fourth Proportional to 253,659.06, 350,037 and 138,938.22

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Solution

The fourth proportional to 253,659.06, 350,037 and 138,938.22 is: 191,727.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,659.06 : 350,037 = 138,938.22 : x
  2. Step 2: Convert to fraction form
    253,659.06/350,037 = 138,938.22/x
  3. Step 3: Cross multiply
    253,659.06x = 350,037 × 138,938.22
  4. Step 4: Simplify right side
    253,659.06x = 48,633,517,714.14
  5. Step 5: Solve for x
    x = 48,633,517,714.14/253,659.06
  6. Step 6: Final answer
    x = 191,727.90

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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.