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Finding the Fourth Proportional to 318,763.51, 439,794.82 and 180,919.94

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Solution

The fourth proportional to 318,763.51, 439,794.82 and 180,919.94 is: 249,613.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,763.51 : 439,794.82 = 180,919.94 : x
  2. Step 2: Convert to fraction form
    318,763.51/439,794.82 = 180,919.94/x
  3. Step 3: Cross multiply
    318,763.51x = 439,794.82 × 180,919.94
  4. Step 4: Simplify right side
    318,763.51x = 79,567,649,343.14
  5. Step 5: Solve for x
    x = 79,567,649,343.14/318,763.51
  6. Step 6: Final answer
    x = 249,613.42

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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.