Home / 240,415.20-331,759.44-138,424.32

Finding the Fourth Proportional to 240,415.20, 331,759.44 and 138,424.32

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Solution

The fourth proportional to 240,415.20, 331,759.44 and 138,424.32 is: 191,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,415.20 : 331,759.44 = 138,424.32 : x
  2. Step 2: Convert to fraction form
    240,415.20/331,759.44 = 138,424.32/x
  3. Step 3: Cross multiply
    240,415.20x = 331,759.44 × 138,424.32
  4. Step 4: Simplify right side
    240,415.20x = 45,923,574,885.58
  5. Step 5: Solve for x
    x = 45,923,574,885.58/240,415.20
  6. Step 6: Final answer
    x = 191,017.77

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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.