Home / 275,207.10-412,421.85-203,570.70

Finding the Fourth Proportional to 275,207.10, 412,421.85 and 203,570.70

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Solution

The fourth proportional to 275,207.10, 412,421.85 and 203,570.70 is: 305,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,207.10 : 412,421.85 = 203,570.70 : x
  2. Step 2: Convert to fraction form
    275,207.10/412,421.85 = 203,570.70/x
  3. Step 3: Cross multiply
    275,207.10x = 412,421.85 × 203,570.70
  4. Step 4: Simplify right side
    275,207.10x = 83,957,004,699.80
  5. Step 5: Solve for x
    x = 83,957,004,699.80/275,207.10
  6. Step 6: Final answer
    x = 305,068.45

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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.