Home / 240,427.63-331,814.84-138,456.93

Finding the Fourth Proportional to 240,427.63, 331,814.84 and 138,456.93

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Solution

The fourth proportional to 240,427.63, 331,814.84 and 138,456.93 is: 191,084.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,427.63 : 331,814.84 = 138,456.93 : x
  2. Step 2: Convert to fraction form
    240,427.63/331,814.84 = 138,456.93/x
  3. Step 3: Cross multiply
    240,427.63x = 331,814.84 × 138,456.93
  4. Step 4: Simplify right side
    240,427.63x = 45,942,064,074.84
  5. Step 5: Solve for x
    x = 45,942,064,074.84/240,427.63
  6. Step 6: Final answer
    x = 191,084.79

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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.