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Finding the Fourth Proportional to 339,698.40, 509,547.60 and 103,029.60

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Solution

The fourth proportional to 339,698.40, 509,547.60 and 103,029.60 is: 154,544.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,698.40 : 509,547.60 = 103,029.60 : x
  2. Step 2: Convert to fraction form
    339,698.40/509,547.60 = 103,029.60/x
  3. Step 3: Cross multiply
    339,698.40x = 509,547.60 × 103,029.60
  4. Step 4: Simplify right side
    339,698.40x = 52,498,485,408.96
  5. Step 5: Solve for x
    x = 52,498,485,408.96/339,698.40
  6. Step 6: Final answer
    x = 154,544.40

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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.