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Finding the Fourth Proportional to 255,329.17, 382,911.42 and 84,519.01

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Solution

The fourth proportional to 255,329.17, 382,911.42 and 84,519.01 is: 126,751.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,329.17 : 382,911.42 = 84,519.01 : x
  2. Step 2: Convert to fraction form
    255,329.17/382,911.42 = 84,519.01/x
  3. Step 3: Cross multiply
    255,329.17x = 382,911.42 × 84,519.01
  4. Step 4: Simplify right side
    255,329.17x = 32,363,294,136.09
  5. Step 5: Solve for x
    x = 32,363,294,136.09/255,329.17
  6. Step 6: Final answer
    x = 126,751.26

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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.