Home / 339,403.24-509,117.82-90,087.40

Finding the Fourth Proportional to 339,403.24, 509,117.82 and 90,087.40

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Solution

The fourth proportional to 339,403.24, 509,117.82 and 90,087.40 is: 135,134.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,403.24 : 509,117.82 = 90,087.40 : x
  2. Step 2: Convert to fraction form
    339,403.24/509,117.82 = 90,087.40/x
  3. Step 3: Cross multiply
    339,403.24x = 509,117.82 × 90,087.40
  4. Step 4: Simplify right side
    339,403.24x = 45,865,100,697.47
  5. Step 5: Solve for x
    x = 45,865,100,697.47/339,403.24
  6. Step 6: Final answer
    x = 135,134.54

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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.