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Finding the Fourth Proportional to 339,999.60, 509,853.60 and 171,454.80

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Solution

The fourth proportional to 339,999.60, 509,853.60 and 171,454.80 is: 257,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,999.60 : 509,853.60 = 171,454.80 : x
  2. Step 2: Convert to fraction form
    339,999.60/509,853.60 = 171,454.80/x
  3. Step 3: Cross multiply
    339,999.60x = 509,853.60 × 171,454.80
  4. Step 4: Simplify right side
    339,999.60x = 87,416,847,017.28
  5. Step 5: Solve for x
    x = 87,416,847,017.28/339,999.60
  6. Step 6: Final answer
    x = 257,108.68

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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.