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Finding the Fourth Proportional to 339,404.80, 508,977.60 and 102,668.80

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Solution

The fourth proportional to 339,404.80, 508,977.60 and 102,668.80 is: 153,964.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,404.80 : 508,977.60 = 102,668.80 : x
  2. Step 2: Convert to fraction form
    339,404.80/508,977.60 = 102,668.80/x
  3. Step 3: Cross multiply
    339,404.80x = 508,977.60 × 102,668.80
  4. Step 4: Simplify right side
    339,404.80x = 52,256,119,418.88
  5. Step 5: Solve for x
    x = 52,256,119,418.88/339,404.80
  6. Step 6: Final answer
    x = 153,964.00

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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.