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Finding the Fourth Proportional to 253,707.58, 350,101.44 and 138,963.34

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Solution

The fourth proportional to 253,707.58, 350,101.44 and 138,963.34 is: 191,761.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,707.58 : 350,101.44 = 138,963.34 : x
  2. Step 2: Convert to fraction form
    253,707.58/350,101.44 = 138,963.34/x
  3. Step 3: Cross multiply
    253,707.58x = 350,101.44 × 138,963.34
  4. Step 4: Simplify right side
    253,707.58x = 48,651,265,441.21
  5. Step 5: Solve for x
    x = 48,651,265,441.21/253,707.58
  6. Step 6: Final answer
    x = 191,761.18

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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.