Home / 340,208.07-509,066.40-321,958.56

Finding the Fourth Proportional to 340,208.07, 509,066.40 and 321,958.56

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Solution

The fourth proportional to 340,208.07, 509,066.40 and 321,958.56 is: 481,758.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,208.07 : 509,066.40 = 321,958.56 : x
  2. Step 2: Convert to fraction form
    340,208.07/509,066.40 = 321,958.56/x
  3. Step 3: Cross multiply
    340,208.07x = 509,066.40 × 321,958.56
  4. Step 4: Simplify right side
    340,208.07x = 163,898,285,088.38
  5. Step 5: Solve for x
    x = 163,898,285,088.38/340,208.07
  6. Step 6: Final answer
    x = 481,758.96

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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.