Home / 291,785.85-402,996.62-196,126.47

Finding the Fourth Proportional to 291,785.85, 402,996.62 and 196,126.47

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Solution

The fourth proportional to 291,785.85, 402,996.62 and 196,126.47 is: 270,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,785.85 : 402,996.62 = 196,126.47 : x
  2. Step 2: Convert to fraction form
    291,785.85/402,996.62 = 196,126.47/x
  3. Step 3: Cross multiply
    291,785.85x = 402,996.62 × 196,126.47
  4. Step 4: Simplify right side
    291,785.85x = 79,038,304,502.53
  5. Step 5: Solve for x
    x = 79,038,304,502.53/291,785.85
  6. Step 6: Final answer
    x = 270,877.78

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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.