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Finding the Fourth Proportional to 339,809.89, 509,727.80 and 173,403.49

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Solution

The fourth proportional to 339,809.89, 509,727.80 and 173,403.49 is: 260,111.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,809.89 : 509,727.80 = 173,403.49 : x
  2. Step 2: Convert to fraction form
    339,809.89/509,727.80 = 173,403.49/x
  3. Step 3: Cross multiply
    339,809.89x = 509,727.80 × 173,403.49
  4. Step 4: Simplify right side
    339,809.89x = 88,388,578,603.00
  5. Step 5: Solve for x
    x = 88,388,578,603.00/339,809.89
  6. Step 6: Final answer
    x = 260,111.85

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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.