Home / 430,755.25-646,133.03-193,821.14

Finding the Fourth Proportional to 430,755.25, 646,133.03 and 193,821.14

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Solution

The fourth proportional to 430,755.25, 646,133.03 and 193,821.14 is: 290,731.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,755.25 : 646,133.03 = 193,821.14 : x
  2. Step 2: Convert to fraction form
    430,755.25/646,133.03 = 193,821.14/x
  3. Step 3: Cross multiply
    430,755.25x = 646,133.03 × 193,821.14
  4. Step 4: Simplify right side
    430,755.25x = 125,234,240,466.25
  5. Step 5: Solve for x
    x = 125,234,240,466.25/430,755.25
  6. Step 6: Final answer
    x = 290,731.78

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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.