Home / 356,128.21-491,437.46-194,952.08

Finding the Fourth Proportional to 356,128.21, 491,437.46 and 194,952.08

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Solution

The fourth proportional to 356,128.21, 491,437.46 and 194,952.08 is: 269,023.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,128.21 : 491,437.46 = 194,952.08 : x
  2. Step 2: Convert to fraction form
    356,128.21/491,437.46 = 194,952.08/x
  3. Step 3: Cross multiply
    356,128.21x = 491,437.46 × 194,952.08
  4. Step 4: Simplify right side
    356,128.21x = 95,806,756,732.89
  5. Step 5: Solve for x
    x = 95,806,756,732.89/356,128.21
  6. Step 6: Final answer
    x = 269,023.22

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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.