Home / 210,255.15-290,143.98-114,761.82

Finding the Fourth Proportional to 210,255.15, 290,143.98 and 114,761.82

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Solution

The fourth proportional to 210,255.15, 290,143.98 and 114,761.82 is: 158,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,255.15 : 290,143.98 = 114,761.82 : x
  2. Step 2: Convert to fraction form
    210,255.15/290,143.98 = 114,761.82/x
  3. Step 3: Cross multiply
    210,255.15x = 290,143.98 × 114,761.82
  4. Step 4: Simplify right side
    210,255.15x = 33,297,451,206.84
  5. Step 5: Solve for x
    x = 33,297,451,206.84/210,255.15
  6. Step 6: Final answer
    x = 158,366.88

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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.