Home / 430,895.89-646,066.21-206,250.90

Finding the Fourth Proportional to 430,895.89, 646,066.21 and 206,250.90

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Solution

The fourth proportional to 430,895.89, 646,066.21 and 206,250.90 is: 309,243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,895.89 : 646,066.21 = 206,250.90 : x
  2. Step 2: Convert to fraction form
    430,895.89/646,066.21 = 206,250.90/x
  3. Step 3: Cross multiply
    430,895.89x = 646,066.21 × 206,250.90
  4. Step 4: Simplify right side
    430,895.89x = 133,251,737,272.09
  5. Step 5: Solve for x
    x = 133,251,737,272.09/430,895.89
  6. Step 6: Final answer
    x = 309,243.46

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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.