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Finding the Fourth Proportional to 268,942.69, 403,457.81 and 79,422.22

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Solution

The fourth proportional to 268,942.69, 403,457.81 and 79,422.22 is: 119,146.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,942.69 : 403,457.81 = 79,422.22 : x
  2. Step 2: Convert to fraction form
    268,942.69/403,457.81 = 79,422.22/x
  3. Step 3: Cross multiply
    268,942.69x = 403,457.81 × 79,422.22
  4. Step 4: Simplify right side
    268,942.69x = 32,043,514,946.54
  5. Step 5: Solve for x
    x = 32,043,514,946.54/268,942.69
  6. Step 6: Final answer
    x = 119,146.26

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1.5x scale

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.