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Finding the Fourth Proportional to 340,551.05, 510,039.23 and 328,741.25

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Solution

The fourth proportional to 340,551.05, 510,039.23 and 328,741.25 is: 492,351.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,551.05 : 510,039.23 = 328,741.25 : x
  2. Step 2: Convert to fraction form
    340,551.05/510,039.23 = 328,741.25/x
  3. Step 3: Cross multiply
    340,551.05x = 510,039.23 × 328,741.25
  4. Step 4: Simplify right side
    340,551.05x = 167,670,929,825.34
  5. Step 5: Solve for x
    x = 167,670,929,825.34/340,551.05
  6. Step 6: Final answer
    x = 492,351.83

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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.