Home / 240,602.19-331,993.83-138,607.66

Finding the Fourth Proportional to 240,602.19, 331,993.83 and 138,607.66

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Solution

The fourth proportional to 240,602.19, 331,993.83 and 138,607.66 is: 191,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,602.19 : 331,993.83 = 138,607.66 : x
  2. Step 2: Convert to fraction form
    240,602.19/331,993.83 = 138,607.66/x
  3. Step 3: Cross multiply
    240,602.19x = 331,993.83 × 138,607.66
  4. Step 4: Simplify right side
    240,602.19x = 46,016,887,910.74
  5. Step 5: Solve for x
    x = 46,016,887,910.74/240,602.19
  6. Step 6: Final answer
    x = 191,257.14

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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.