Home / 215,786.46-297,824.13-135,283.80

Finding the Fourth Proportional to 215,786.46, 297,824.13 and 135,283.80

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Solution

The fourth proportional to 215,786.46, 297,824.13 and 135,283.80 is: 186,715.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,786.46 : 297,824.13 = 135,283.80 : x
  2. Step 2: Convert to fraction form
    215,786.46/297,824.13 = 135,283.80/x
  3. Step 3: Cross multiply
    215,786.46x = 297,824.13 × 135,283.80
  4. Step 4: Simplify right side
    215,786.46x = 40,290,780,038.09
  5. Step 5: Solve for x
    x = 40,290,780,038.09/215,786.46
  6. Step 6: Final answer
    x = 186,715.98

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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.