Home / 319,317.08-440,492.66-198,412.44

Finding the Fourth Proportional to 319,317.08, 440,492.66 and 198,412.44

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Solution

The fourth proportional to 319,317.08, 440,492.66 and 198,412.44 is: 273,706.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,317.08 : 440,492.66 = 198,412.44 : x
  2. Step 2: Convert to fraction form
    319,317.08/440,492.66 = 198,412.44/x
  3. Step 3: Cross multiply
    319,317.08x = 440,492.66 × 198,412.44
  4. Step 4: Simplify right side
    319,317.08x = 87,399,223,472.69
  5. Step 5: Solve for x
    x = 87,399,223,472.69/319,317.08
  6. Step 6: Final answer
    x = 273,706.70

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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.