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Finding the Fourth Proportional to 302,078.80, 453,103.80 and 102,379.60

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Solution

The fourth proportional to 302,078.80, 453,103.80 and 102,379.60 is: 153,564.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,078.80 : 453,103.80 = 102,379.60 : x
  2. Step 2: Convert to fraction form
    302,078.80/453,103.80 = 102,379.60/x
  3. Step 3: Cross multiply
    302,078.80x = 453,103.80 × 102,379.60
  4. Step 4: Simplify right side
    302,078.80x = 46,388,585,802.48
  5. Step 5: Solve for x
    x = 46,388,585,802.48/302,078.80
  6. Step 6: Final answer
    x = 153,564.52

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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.