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Finding the Fourth Proportional to 339,352.80, 508,899.60 and 102,616.80

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Solution

The fourth proportional to 339,352.80, 508,899.60 and 102,616.80 is: 153,886.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,352.80 : 508,899.60 = 102,616.80 : x
  2. Step 2: Convert to fraction form
    339,352.80/508,899.60 = 102,616.80/x
  3. Step 3: Cross multiply
    339,352.80x = 508,899.60 × 102,616.80
  4. Step 4: Simplify right side
    339,352.80x = 52,221,648,473.28
  5. Step 5: Solve for x
    x = 52,221,648,473.28/339,352.80
  6. Step 6: Final answer
    x = 153,886.01

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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.