Home / 328,040.24-491,986.53-117,678.18

Finding the Fourth Proportional to 328,040.24, 491,986.53 and 117,678.18

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Solution

The fourth proportional to 328,040.24, 491,986.53 and 117,678.18 is: 176,490.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,040.24 : 491,986.53 = 117,678.18 : x
  2. Step 2: Convert to fraction form
    328,040.24/491,986.53 = 117,678.18/x
  3. Step 3: Cross multiply
    328,040.24x = 491,986.53 × 117,678.18
  4. Step 4: Simplify right side
    328,040.24x = 57,896,079,434.92
  5. Step 5: Solve for x
    x = 57,896,079,434.92/328,040.24
  6. Step 6: Final answer
    x = 176,490.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.